﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2017v2.2" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2019-05-15T12:19:33-07:00</ReturnTs>
    <TaxPeriodEndDt>2018-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>760269860</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Blazek &amp; Vetterling</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2900 Weslayan Suite 200</AddressLine1Txt>
        <CityNm>Houston</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>770275132</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2017-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>741486232</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>The Post Oak School</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>POST</BusinessNameControlTxt>
      <PhoneNum>7136616688</PhoneNum>
      <USAddress>
        <AddressLine1Txt>4600 Bissonnet</AddressLine1Txt>
        <CityNm>Bellaire</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>77401</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Maura Joyce</PersonNm>
      <PersonTitleTxt>President</PersonTitleTxt>
      <SignatureDt>2019-05-15</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Jody Blazek</PreparerPersonNm>
      <PTIN>P00072674</PTIN>
      <PhoneNum>7134395739</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2017</TaxYr>
    <BuildTS>2020-01-14 16:20:31Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="9">
    <IRS990 documentId="IRS990" referenceDocumentId="IRS990ScheduleO" softwareId="17005038" softwareVersionNum="2017v2.2">
      <PrincipalOfficerNm>Maura Joyce</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>4600 Bissonnet</AddressLine1Txt>
        <CityNm>Bellaire</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>77401</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>13287341</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <AllAffiliatesIncludedInd>false</AllAffiliatesIncludedInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.postoakschool.org</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1964</FormationYr>
      <LegalDomicileStateCd>TX</LegalDomicileStateCd>
      <ActivityOrMissionDesc>The Post Oak School was founded to provide a superior Montessori environment and dynamic learning experiences which are designed according to the developmental characteristics and needs of children to guide and nurture each child intellectually, socially, and emotionally.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>17</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>16</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>113</TotalEmployeeCnt>
      <TotalVolunteersCnt>125</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>13626</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>907038</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>590444</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>11214523</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>12452541</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>69908</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>117764</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>41720</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>12233189</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>13160749</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>1161492</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>1261825</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>6911499</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>7283712</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>17830</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>18129</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>292793</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>3525673</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>3888798</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>11616494</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>12452464</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>616695</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>708285</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>26317226</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>25751615</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>10382232</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>8406747</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>15934994</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>17344868</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>The mission of The Post Oak School is to provide a superior Montessori environment and dynamic learning experiences which are designed according to the developmental characteristics and needs of children; to guide and nurture each child - intellectually, socially, and emotionally.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>10977539</ExpenseAmt>
      <GrantAmt>1261825</GrantAmt>
      <RevenueAmt>12452541</RevenueAmt>
      <Desc>The Post Oak School provides a comprehensive Montessori education, based on the principals and practices of Association Montessori Internationale (AMI)and accredited by the International Schools of the Southwest (ISAS), to a diverse population of approximately 500 students from infancy to high school. In keeping with Dr. Montessori's ideals, children work in multi age classrooms with a high level of freedom in choosing their own foundations in language, math, geography, science, music, and other disciplines. During the 2012-2013 school year, the school added a High School on a second campus located in the museum district of Houston which incorporates the principles of Dr. Montessori as well as the International Baccalaureate. In 2016, the museum district campus was expanded with the construction of an additional building. The High School moved into the new building and the Middle School was relocated to the new campus for the 2016-2017 school year.</Desc>
      <ProgSrvcAccomActy2Grp>
        <Desc>The Post Oak School offers an extensive program of parent education. A free series of four classes, repeated throughout the year, offers general information about Montessori education to both prospective parents and interested visitors. The infant-parent program helps parents of toddlers to raise happy, self confident children. A variety of other classes, lectures, and other presentations during the school year, some free and open to the public and others by reservation afford a variety of perspectives on the School's primary purpose of raising intelligent, confident, caring, and self-motivated lifelong learners.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <Desc>Community service is deeply ingrained in the Montessori curriculum, from infancy through adolescence. By the time of Middle School, the entire class spends a half day each week working in small groups at various service agencies around Houston. Elementary students have ongoing relationships with other agencies, whether through regular site visits for volunteer work or by working on projects to benefit needy people in more distant places. Older children routinely learn the benefits and blessing of aiding others in the school's multi age classrooms. Even the infants, living in a small tight knit community, discover early on that other people have feelings.</Desc>
      </ProgSrvcAccomActy3Grp>
      <TotalProgramServiceExpensesAmt>10977539</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="IRS990ScheduleA">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="IRS990ScheduleB">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="IRS990ScheduleD">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="IRS990ScheduleD">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="IRS990ScheduleD">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="IRS990ScheduleD">false</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd referenceDocumentId="IRS990ScheduleD">true</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="IRS990ScheduleD">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="IRS990ScheduleD">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="IRS990ScheduleD">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="IRS990ScheduleD">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="IRS990ScheduleD">false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="IRS990ScheduleD">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">true</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd referenceDocumentId="IRS990ScheduleE">true</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd referenceDocumentId="IRS990ScheduleG">true</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="IRS990ScheduleG">false</FundraisingActivitiesInd>
      <GamingActivitiesInd referenceDocumentId="IRS990ScheduleG">false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="IRS990ScheduleI">false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="IRS990ScheduleI">true</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="IRS990ScheduleJ">true</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <InvestTaxExemptBondsInd>false</InvestTaxExemptBondsInd>
      <EscrowAccountInd>false</EscrowAccountInd>
      <OnBehalfOfIssuerInd>false</OnBehalfOfIssuerInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>false</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>22</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>113</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>true</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>true</Form990TFiledInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <Form8282FiledCnt>0</Form8282FiledCnt>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <Form8899Filedind>false</Form8899Filedind>
      <Form1098CFiledInd>false</Form1098CFiledInd>
      <DAFExcessBusinessHoldingsInd>false</DAFExcessBusinessHoldingsInd>
      <TaxableDistributionsInd>false</TaxableDistributionsInd>
      <DistributionToDonorInd>false</DistributionToDonorInd>
      <OrgFiledInLieuOfForm1041Ind>false</OrgFiledInLieuOfForm1041Ind>
      <LicensedMoreThanOneStateInd>false</LicensedMoreThanOneStateInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>17</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>16</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>Kelly Vaughn</PersonNm>
        <PhoneNum>7136616688</PhoneNum>
        <USAddress>
          <AddressLine1Txt>4600 Bissonnet</AddressLine1Txt>
          <CityNm>Bellaire</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77401</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>Manolo Sanchez</PersonNm>
        <TitleTxt>Chairman</TitleTxt>
        <AverageHoursPerWeekRt>10.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Vean Gregg</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Gregory Han</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Sehba Ali</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Erin Busby</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Raj Chelapurath</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Blair Garrou</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mark Martin</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Bert Mellinger</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jaana Porra</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Rona Sonabend</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Rochelle Tafolla</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Marc Walsh</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Alison Wong</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Alan Ying</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jennifer Zumbado</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Maura Joyce</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHoursPerWeekRt>60.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>250906</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>31681</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Kelly Vaughn</PersonNm>
        <TitleTxt>CFO</TitleTxt>
        <AverageHoursPerWeekRt>60.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>128896</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>15568</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>James Moudry</PersonNm>
        <TitleTxt>HS Director</TitleTxt>
        <AverageHoursPerWeekRt>55.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>126637</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>16290</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Errol Pinto</PersonNm>
        <TitleTxt>Upper Elem Teacher</TitleTxt>
        <AverageHoursPerWeekRt>55.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>117483</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>14811</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mirani Smith</PersonNm>
        <TitleTxt>Early Child Dir</TitleTxt>
        <AverageHoursPerWeekRt>55.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>112397</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>18634</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Maya Pinto</PersonNm>
        <TitleTxt>Upper Elem Teacher</TitleTxt>
        <AverageHoursPerWeekRt>55.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>110301</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>14434</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jami Sweeney</PersonNm>
        <TitleTxt>MS Director</TitleTxt>
        <AverageHoursPerWeekRt>55.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>106525</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>7080</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>953145</TotalReportableCompFromOrgAmt>
      <TotalOtherCompensationAmt>118498</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>7</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Mission Construction</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>3813 Buffalo Speedway 150</AddressLine1Txt>
            <CityNm>Houston</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77098</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Construction</ServicesDesc>
        <CompensationAmt>1094052</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Servpro</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>11111 Jones Road West</AddressLine1Txt>
            <CityNm>Houston</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77065</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Water Damage Repair</ServicesDesc>
        <CompensationAmt>250000</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DTK Janitorial</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>8570 Katy Freeway Ste 114</AddressLine1Txt>
            <CityNm>Houston</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77024</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Janitorial Services</ServicesDesc>
        <CompensationAmt>171468</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>The POM Group</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1322 Space Park Dr Ste C285</AddressLine1Txt>
            <CityNm>Houston</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77058</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Security Services</ServicesDesc>
        <CompensationAmt>127131</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>4</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>590444</AllOtherContributionsAmt>
      <TotalContributionsAmt>590444</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Tuition and fees</Desc>
        <BusinessCd>611710</BusinessCd>
        <TotalRevenueColumnAmt>12040386</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12040386</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Tuition and fees - HMI</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>7478</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>7478</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Tuition summer/ext day</Desc>
        <BusinessCd>611600</BusinessCd>
        <TotalRevenueColumnAmt>404677</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>404677</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>12452541</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>117631</TotalRevenueColumnAmt>
        <ExclusionAmt>117631</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </RoyaltiesRevenueGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>126725</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>126592</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>133</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>133</TotalRevenueColumnAmt>
        <ExclusionAmt>133</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <NetIncomeFromGamingGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeFromGamingGrp>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueTotalAmt>0</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>13160749</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12452541</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>117764</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>1261825</TotalAmt>
        <ProgramServicesAmt>1261825</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>0</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>413449</TotalAmt>
        <ProgramServicesAmt>365397</ProgramServicesAmt>
        <ManagementAndGeneralAmt>39121</ManagementAndGeneralAmt>
        <FundraisingAmt>8931</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>5575354</TotalAmt>
        <ProgramServicesAmt>4927367</ProgramServicesAmt>
        <ManagementAndGeneralAmt>527557</ManagementAndGeneralAmt>
        <FundraisingAmt>120430</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>239744</TotalAmt>
        <ProgramServicesAmt>211880</ProgramServicesAmt>
        <ManagementAndGeneralAmt>22685</ManagementAndGeneralAmt>
        <FundraisingAmt>5179</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>632585</TotalAmt>
        <ProgramServicesAmt>559064</ProgramServicesAmt>
        <ManagementAndGeneralAmt>59857</ManagementAndGeneralAmt>
        <FundraisingAmt>13664</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>422580</TotalAmt>
        <ProgramServicesAmt>373466</ProgramServicesAmt>
        <ManagementAndGeneralAmt>39986</ManagementAndGeneralAmt>
        <FundraisingAmt>9128</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>8941</TotalAmt>
        <ManagementAndGeneralAmt>8941</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>22224</TotalAmt>
        <ManagementAndGeneralAmt>22224</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
        <TotalAmt>18129</TotalAmt>
        <FundraisingAmt>18129</FundraisingAmt>
      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>19067</TotalAmt>
        <ProgramServicesAmt>10917</ProgramServicesAmt>
        <ManagementAndGeneralAmt>7908</ManagementAndGeneralAmt>
        <FundraisingAmt>242</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>60274</TotalAmt>
        <ManagementAndGeneralAmt>45370</ManagementAndGeneralAmt>
        <FundraisingAmt>14904</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>201652</TotalAmt>
        <ProgramServicesAmt>120786</ProgramServicesAmt>
        <ManagementAndGeneralAmt>54338</ManagementAndGeneralAmt>
        <FundraisingAmt>26528</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>237843</TotalAmt>
        <ProgramServicesAmt>203675</ProgramServicesAmt>
        <ManagementAndGeneralAmt>31554</ManagementAndGeneralAmt>
        <FundraisingAmt>2614</FundraisingAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>742048</TotalAmt>
        <ProgramServicesAmt>725653</ProgramServicesAmt>
        <ManagementAndGeneralAmt>14503</ManagementAndGeneralAmt>
        <FundraisingAmt>1892</FundraisingAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>0</TotalAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>322870</TotalAmt>
        <ProgramServicesAmt>182829</ProgramServicesAmt>
        <ManagementAndGeneralAmt>134861</ManagementAndGeneralAmt>
        <FundraisingAmt>5180</FundraisingAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>272580</TotalAmt>
        <ProgramServicesAmt>233341</ProgramServicesAmt>
        <ManagementAndGeneralAmt>39239</ManagementAndGeneralAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>745083</TotalAmt>
        <ProgramServicesAmt>731855</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11702</ManagementAndGeneralAmt>
        <FundraisingAmt>1526</FundraisingAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>168409</TotalAmt>
        <ProgramServicesAmt>142668</ProgramServicesAmt>
        <ManagementAndGeneralAmt>23869</ManagementAndGeneralAmt>
        <FundraisingAmt>1872</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Educational materials &amp; suppl</Desc>
        <TotalAmt>894976</TotalAmt>
        <ProgramServicesAmt>894976</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Other development exp</Desc>
        <TotalAmt>62382</TotalAmt>
        <FundraisingAmt>62382</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Utility easement</Desc>
        <TotalAmt>30000</TotalAmt>
        <ManagementAndGeneralAmt>30000</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Uncollectible amounts</Desc>
        <TotalAmt>28512</TotalAmt>
        <ManagementAndGeneralAmt>28512</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>71937</TotalAmt>
        <ProgramServicesAmt>31840</ProgramServicesAmt>
        <ManagementAndGeneralAmt>39905</ManagementAndGeneralAmt>
        <FundraisingAmt>192</FundraisingAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>12452464</TotalAmt>
        <ProgramServicesAmt>10977539</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1182132</ManagementAndGeneralAmt>
        <FundraisingAmt>292793</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>1589635</BOYAmt>
        <EOYAmt>670964</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>4774138</BOYAmt>
        <EOYAmt>4651626</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>592042</BOYAmt>
        <EOYAmt>335660</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>110761</BOYAmt>
        <EOYAmt>439093</EOYAmt>
      </AccountsReceivableGrp>
      <ReceivablesFromOfficersEtcGrp>
        <EOYAmt>0</EOYAmt>
      </ReceivablesFromOfficersEtcGrp>
      <RcvblFromDisqualifiedPrsnGrp>
        <EOYAmt>0</EOYAmt>
      </RcvblFromDisqualifiedPrsnGrp>
      <OthNotesLoansReceivableNetGrp>
        <EOYAmt>0</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
        <EOYAmt>0</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>92855</BOYAmt>
        <EOYAmt>213575</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>23050842</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>6028860</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>17004390</BOYAmt>
        <EOYAmt>17021982</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>2153405</BOYAmt>
        <EOYAmt>2402481</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <EOYAmt>0</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <EOYAmt>16234</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>26317226</BOYAmt>
        <EOYAmt>25751615</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>476766</BOYAmt>
        <EOYAmt>276055</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>2280803</BOYAmt>
        <EOYAmt>1030296</EOYAmt>
      </DeferredRevenueGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>7446174</BOYAmt>
        <EOYAmt>7100396</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>178489</BOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>10382232</BOYAmt>
        <EOYAmt>8406747</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>14754773</BOYAmt>
        <EOYAmt>16069795</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>528879</BOYAmt>
        <EOYAmt>623731</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <PermanentlyRstrNetAssetsGrp>
        <BOYAmt>651342</BOYAmt>
        <EOYAmt>651342</EOYAmt>
      </PermanentlyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>15934994</BOYAmt>
        <EOYAmt>17344868</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>26317226</BOYAmt>
        <EOYAmt>25751615</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>708285</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>111216</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>590373</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA" softwareId="17005038" softwareVersionNum="2017v2.2">
      <SchoolInd>X</SchoolInd>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1561329</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2171229</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>975042</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>907038</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>590444</CurrentTaxYearAmt>
        <TotalAmt>6205082</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TaxRevLeviedOrgnztnlBnft170Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft170Grp>
      <GovtFurnSrvcFcltsVl170Grp>
        <TotalAmt>0</TotalAmt>
      </GovtFurnSrvcFcltsVl170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>1561329</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2171229</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>975042</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>907038</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>590444</CurrentTaxYearAmt>
        <TotalAmt>6205082</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>720643</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>5484439</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>46642</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>56432</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>76135</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>70648</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>117631</CurrentTaxYearAmt>
        <TotalAmt>367488</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <TotalAmt>0</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
        <TotalAmt>0</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>6572570</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>51670895</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.83440</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.82310</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB" softwareId="17005038" softwareVersionNum="2017v2.2" />
    <IRS990ScheduleD documentId="IRS990ScheduleD" softwareId="17005038" softwareVersionNum="2017v2.2">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>2186790</BeginningYearBalanceAmt>
        <ContributionsAmt>25492</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>182972</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2395254</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1845806</BeginningYearBalanceAmt>
        <ContributionsAmt>40612</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>300372</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2186790</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1865161</BeginningYearBalanceAmt>
        <ContributionsAmt>16750</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-36105</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1845806</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1816100</BeginningYearBalanceAmt>
        <ContributionsAmt>34750</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>14311</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1865161</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1496988</BeginningYearBalanceAmt>
        <ContributionsAmt>15750</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>303362</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1816100</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>0.47860</BoardDesignatedBalanceEOYPct>
      <PrmnntEndowmentBalanceEOYPct>0.27190</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.24950</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <RelatedOrgListSchRInd>false</RelatedOrgListSchRInd>
      <LandGrp>
        <OtherCostOrOtherBasisAmt>5850123</OtherCostOrOtherBasisAmt>
        <BookValueAmt>5850123</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>15817525</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>5187976</DepreciationAmt>
        <BookValueAmt>10629549</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>1383194</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>840884</DepreciationAmt>
        <BookValueAmt>542310</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>17021982</TotalBookValueLandBuildingsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>12010140</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>111216</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>111216</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>11898924</RevenueSubtotalAmt>
      <OtherRevenuesNotIncludedAmt>1261825</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>1261825</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>13160749</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>11190639</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>11190639</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>1261825</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>1261825</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>12452464</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4: Intended uses of the endowment fund.</FormAndLineReferenceDesc>
        <ExplanationTxt>The Endowment fund is dedicated to benefit The Post Oak School by supporting program enrichment, specific teaching programs, Montessori training, staff professional development, tuition assistance, and operation and maintenance of the facilities</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 4b: Other revenue amounts included on 990 but not included in F/S</FormAndLineReferenceDesc>
        <ExplanationTxt>Financial aid to students $1261825</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 4b: Other revenue amounts included on 990 but not included in F/S</FormAndLineReferenceDesc>
        <ExplanationTxt>Financial aid to students $1261825</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleE documentId="IRS990ScheduleE" softwareId="17005038" softwareVersionNum="2017v2.2">
      <NondiscriminatoryPolicyStmtInd>true</NondiscriminatoryPolicyStmtInd>
      <PolicyStmtInBrochuresEtcInd>true</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>true</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>true</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>true</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>true</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>true</MaintainCpyOfAllSolInd>
      <DiscriminateRaceStdntsRghtsInd>false</DiscriminateRaceStdntsRghtsInd>
      <DiscriminateRaceAdmissPlcyInd>false</DiscriminateRaceAdmissPlcyInd>
      <DiscriminateRaceEmplmFcultyInd>false</DiscriminateRaceEmplmFcultyInd>
      <DiscriminateRaceSchsInd>false</DiscriminateRaceSchsInd>
      <DiscriminateRaceEducPlcyInd>false</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>false</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>false</DiscriminateRaceAthltProgInd>
      <DiscriminateRaceOtherActyInd>false</DiscriminateRaceOtherActyInd>
      <GovernmentFinancialAidRcvdInd>false</GovernmentFinancialAidRcvdInd>
      <GovernmentFinancialAidRvkdInd>false</GovernmentFinancialAidRvkdInd>
      <ComplianceWithRevProc7550Ind>true</ComplianceWithRevProc7550Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 3 - Racially Nondiscriminatory Policy Publicized</FormAndLineReferenceDesc>
        <ExplanationTxt>The School places an annual ad in the Houston Chronicle that describes its nondiscriminatory policy as to students. Additionally, information about the policy is included in all of the literature that is given to prospective families applying to the school and on our website.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 4 - Explanation of Records and Materials Not Maintained</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 5 - Explanation of Organization Discrimination by Race</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
    </IRS990ScheduleE>
    <IRS990ScheduleG documentId="IRS990ScheduleG" softwareId="17005038" softwareVersionNum="2017v2.2">
      <MailSolicitationsInd>X</MailSolicitationsInd>
      <EmailSolicitationsInd>X</EmailSolicitationsInd>
      <PhoneSolicitationsInd>X</PhoneSolicitationsInd>
      <InPersonSolicitationsInd>X</InPersonSolicitationsInd>
      <SolicitationOfNonGovtGrantsInd>X</SolicitationOfNonGovtGrantsInd>
      <SpecialFundraisingEventsInd>X</SpecialFundraisingEventsInd>
      <AgrmtProfFundraisingActyInd>true</AgrmtProfFundraisingActyInd>
      <FundraiserActivityInfoGrp>
        <OrganizationBusinessName>
          <BusinessNameLine1Txt>Sterling Assoc</BusinessNameLine1Txt>
        </OrganizationBusinessName>
        <USAddress>
          <AddressLine1Txt>55 Waugh</AddressLine1Txt>
          <CityNm>Houston</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77007</ZIPCd>
        </USAddress>
        <ActivityTxt>Cap Campaign</ActivityTxt>
        <FundraiserControlOfFundsInd>false</FundraiserControlOfFundsInd>
        <GrossReceiptsAmt>590444</GrossReceiptsAmt>
        <RetainedByContractorAmt>18129</RetainedByContractorAmt>
        <NetToOrganizationAmt>572315</NetToOrganizationAmt>
      </FundraiserActivityInfoGrp>
      <TotalGrossReceiptsAmt>590444</TotalGrossReceiptsAmt>
      <TotalRetainedByContractorsAmt>18129</TotalRetainedByContractorsAmt>
      <TotalNetToOrganizationAmt>572315</TotalNetToOrganizationAmt>
      <LicensedStatesCd>TX</LicensedStatesCd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2b - Fundraiser Additional Information</FormAndLineReferenceDesc>
        <ExplanationTxt>The Post Oak School has contracted with Sterling and Associates for consulting services related to the capital campaign for the High School. All of the funds raised have been received by the School.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleG>
    <IRS990ScheduleI documentId="IRS990ScheduleI" softwareId="17005038" softwareVersionNum="2017v2.2">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <Total501c3OrgCnt>0</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Financial aid</GrantTypeTxt>
        <RecipientCnt>89</RecipientCnt>
        <CashGrantAmt>1261825</CashGrantAmt>
        <ValuationMethodUsedDesc>Tuition reduction</ValuationMethodUsedDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Grantmaker's Description of How Grants are Used</FormAndLineReferenceDesc>
        <ExplanationTxt>Financial aid is awarded based on the relative need of the families that have applied and on funds available. Each year the family must reapply for financial assistance. Additional information and applications are available on the website.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ" softwareId="17005038" softwareVersionNum="2017v2.2">
      <SubstantiationRequiredInd>true</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RebuttablePresumptionProcInd>false</RebuttablePresumptionProcInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Maura Joyce</PersonNm>
        <TitleTxt>President</TitleTxt>
        <BaseCompensationFilingOrgAmt>250906</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>24000</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>7681</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>282587</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="17005038" softwareVersionNum="2017v2.2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d: Other Program Services Description</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER PROGRAM SERVICES 4: Community service is deeply ingrained in the Montessori curriculum, from infancy through adolescence. By the time of Middle School, the entire class spends a half day each week working in small groups at various service agencies around Houston. Elementary students have ongoing relationships with other agencies, whether through regular site visits for volunteer work or by working on projects to benefit needy people in more distant places. Older children routinely learn the benefits and blessing of aiding others in the school's multi age classrooms. Even the infants, living in a small tight knit community, discover early on that other people have feelings.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b: Form 990 Review Process</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 is reviewed by the CFO and the Audit Committee. After approval, a final copy is made available for all Trustees to review via the Board of Trustees portal on the School website. Trustees are asked to review and comment on the Form prior to filing with the IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</FormAndLineReferenceDesc>
        <ExplanationTxt>Compliance with the conflict of interest policy is enforced through the use of an annual questionnaire.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a: Compensation Review &amp; Approval Process - CEO, Top Management</FormAndLineReferenceDesc>
        <ExplanationTxt>Head of School's annual compensation is determined by the Head Support &amp; Evaluation Committee using NAIS, ISAS, along with using a compensation consultant and other data points in addition to the committee's performance review. The Committee then presents its findings to the full Board who vote on the contract renewal</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b: Compensation Review and Approval Process for Officers and Key Employees</FormAndLineReferenceDesc>
        <ExplanationTxt>The Head Support &amp; Evaluation committee reviews the comparative data that is used to determine other key employee's compensation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents, policies, and financial statements are made available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Increases</FormAndLineReferenceDesc>
        <ExplanationTxt>Change in value of derivative agreement = $194723</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Decreases</FormAndLineReferenceDesc>
        <ExplanationTxt>Clean up and repair expenses resulting from Hurricane Harvey = -$651587</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Increases</FormAndLineReferenceDesc>
        <ExplanationTxt>Insurance proceeds related to Hurricane Harvey losses = $1047237</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>