<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2020v4.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2022-05-13T11:28:36-05:00</ReturnTs>
    <TaxPeriodEndDt>2021-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>841612548</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>BARBARA A MEDINA CPA PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>16 INVERNESS PL STE E-100</AddressLine1Txt>
        <CityNm>ENGLEWOOD</CityNm>
        <StateAbbreviationCd>CO</StateAbbreviationCd>
        <ZIPCd>801125630</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2020-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>391556438</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>NAT'L COUNCIL OF SUPERVISORS OF</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>MATHEMATICS</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>NATL</BusinessNameControlTxt>
      <PhoneNum>3037589611</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2851 S PARKER ROAD 1210</AddressLine1Txt>
        <CityNm>AURORA</CityNm>
        <StateAbbreviationCd>CO</StateAbbreviationCd>
        <ZIPCd>80014</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>STEVEN SHADEL</PersonNm>
      <PersonTitleTxt>DIRECTOR</PersonTitleTxt>
      <SignatureDt>2022-05-11</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>STEVEN</PersonFirstNm>
        <PersonLastNm>SHADEL</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>BARBARA A MEDINA CPA</PreparerPersonNm>
      <PTIN>P00383605</PTIN>
      <PhoneNum>3037717136</PhoneNum>
      <PreparationDt>2022-05-11</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2020</TaxYr>
    <BuildTS>2022-09-23 18:48:47Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="RetDoc2" referenceDocumentId="RetDoc4">
      <DoingBusinessAsName>
        <BusinessNameLine1Txt>NCSM-LEADERSHIP IN MATHEMATICS</BusinessNameLine1Txt>
      </DoingBusinessAsName>
      <PrincipalOfficerNm>MONA TONCHEFF</PrincipalOfficerNm>
      <GrossReceiptsAmt>751238</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.MATHEDLEADERSHIP.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2004</FormationYr>
      <LegalDomicileStateCd>CO</LegalDomicileStateCd>
      <ActivityOrMissionDesc>THE NATIONAL COUNCIL OF SUPERVISORS OF MATHEMATICS (NCSM) IS A MATHEMATICS LEADERSHIP ORGANIZATION FOR EDUCATION LEADERS THAT PROVIDES PROFESSIONAL LEARNING OPPORTUNITIES NECESSARY TO SUPPORT AND SUSTAIN IMPROVED STUDENT ACHIEVEMENT.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>50</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>50</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalGrossUBIAmt>3250</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>247228</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>193247</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>223589</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>481928</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>-12300</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>72405</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>5171</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>3658</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>463688</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>751238</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>579638</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>416726</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>579638</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>416726</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-115950</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>334512</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>603238</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>933498</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>6350</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>2098</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>596888</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>931400</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE NATIONAL COUNCIL OF SUPERVISORS OF MATHEMATICS (NCSM) IS A MATHEMATICS LEADERSHIP ORGANIZATION FOR EDUCATION LEADERS THAT PROVIDES PROFESSIONAL LEARNING OPPORTUNITIES NECESSARY TO SUPPORT AND SUSTAIN IMPROVED STUDENT ACHIEVEMENT.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>58407</ExpenseAmt>
      <RevenueAmt>316434</RevenueAmt>
      <Desc>CONFERENCE: OUR IN-PERSON CONFERENCE AND A VIRTUAL CONFERENCE WAS HOSTED.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>123870</ExpenseAmt>
        <RevenueAmt>158119</RevenueAmt>
        <Desc>LEADERSHIP ACADEMY, SUMMIT ACADEMY AND FALL CONFERENCE</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActyOtherGrp>
        <RevenueAmt>7375</RevenueAmt>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcRevenueAmt>7375</TotalOtherProgSrvcRevenueAmt>
      <TotalProgramServiceExpensesAmt>182277</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc5">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc3">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc3">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc3">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc3">false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="RetDoc3">false</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc3">false</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc3">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc3">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc3">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc3">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc3">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc3">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc3">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>false</BusinessRlnWith35CtrlEntInd>
      <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>4</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>true</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>true</Form990TFiledInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>50</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>50</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>true</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>true</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>false</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>false</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>CIVICA ACQUISTIONS LLC</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>7204571057</PhoneNum>
        <USAddress>
          <AddressLine1Txt>2851 S PARKER RD 1210</AddressLine1Txt>
          <CityNm>AURORA</CityNm>
          <StateAbbreviationCd>CO</StateAbbreviationCd>
          <ZIPCd>80114</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>KATEY ARRINGTON</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CATHY BOUTIN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHERYL CANTIN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ASTRID FOSSUM</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BERNARD FROST</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL GRAY</PersonNm>
        <TitleTxt>PAST PRESIDE</TitleTxt>
        <AverageHoursPerWeekRt>4.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LINDA GRIFFITH</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SHARON RENDON</PersonNm>
        <TitleTxt>SECOND VICE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN SANGIOVANNI</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SARAH SCHUHL</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROSA SERRATORE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVEN SHADEL</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MONA TONCHEFF</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>4.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SHAWN TOWLE</PersonNm>
        <TitleTxt>1ST VICE PRE</TitleTxt>
        <AverageHoursPerWeekRt>4.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DENISE TRAKAS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <MembershipDuesAmt>167835</MembershipDuesAmt>
      <AllOtherContributionsAmt>25412</AllOtherContributionsAmt>
      <TotalContributionsAmt>193247</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL CONFERENCE</Desc>
        <TotalRevenueColumnAmt>316434</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>316434</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>LEADERSHIP SUMMIT</Desc>
        <TotalRevenueColumnAmt>101225</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>101225</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>PUBLICATION</Desc>
        <TotalRevenueColumnAmt>23347</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>23347</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>FALL CONFERENCES</Desc>
        <TotalRevenueColumnAmt>21334</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>21334</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>LEADERSHIP ACADEMY</Desc>
        <TotalRevenueColumnAmt>12213</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12213</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>7375</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>7375</RelatedOrExemptFuncIncomeAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>481928</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>72405</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>72399</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>408</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>408</RelatedOrExemptFuncIncomeAmt>
      </RoyaltiesRevenueGrp>
      <OtherRevenueMiscGrp>
        <Desc>UNRELATED BUSINESS TAXABLE IN</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>3250</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>3250</UnrelatedBusinessRevenueAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>3250</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>751238</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>482342</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>3250</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>72399</ExclusionAmt>
      </TotalRevenueGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>7788</TotalAmt>
        <ManagementAndGeneralAmt>7788</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <InformationTechnologyGrp>
        <TotalAmt>26423</TotalAmt>
        <ManagementAndGeneralAmt>26423</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>313441</TotalAmt>
        <ProgramServicesAmt>147219</ProgramServicesAmt>
        <ManagementAndGeneralAmt>166222</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <InsuranceGrp>
        <TotalAmt>1533</TotalAmt>
        <ManagementAndGeneralAmt>1533</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>ADVERTISING EXP</Desc>
        <TotalAmt>9700</TotalAmt>
        <ProgramServicesAmt>9700</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PUBLICATIONS</Desc>
        <TotalAmt>18056</TotalAmt>
        <ProgramServicesAmt>18056</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BOARD MEETING EXPENSES</Desc>
        <TotalAmt>15495</TotalAmt>
        <ManagementAndGeneralAmt>15495</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK SERVICE CHARGES</Desc>
        <TotalAmt>14031</TotalAmt>
        <ManagementAndGeneralAmt>14031</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>10259</TotalAmt>
        <ProgramServicesAmt>7302</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2957</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>416726</TotalAmt>
        <ProgramServicesAmt>182277</ProgramServicesAmt>
        <ManagementAndGeneralAmt>234449</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>45509</BOYAmt>
        <EOYAmt>282846</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>554785</BOYAmt>
        <EOYAmt>637126</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>914</BOYAmt>
        <EOYAmt>13402</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>2030</BOYAmt>
        <EOYAmt>124</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>603238</BOYAmt>
        <EOYAmt>933498</EOYAmt>
      </TotalAssetsGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>6350</BOYAmt>
        <EOYAmt>2098</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>6350</BOYAmt>
        <EOYAmt>2098</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>596888</BOYAmt>
        <EOYAmt>931400</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>596888</BOYAmt>
        <EOYAmt>931400</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>603238</BOYAmt>
        <EOYAmt>933498</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>334512</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc5">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus3YearsAmt>213540</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>199080</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>247228</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>193247</CurrentTaxYearAmt>
        <TotalAmt>853095</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus3YearsAmt>213540</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>199080</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>247228</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>193247</CurrentTaxYearAmt>
        <TotalAmt>853095</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>853095</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus3YearsAmt>12246</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>-11816</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>-26436</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>57176</CurrentTaxYearAmt>
        <TotalAmt>31170</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <CurrentTaxYearMinus3YearsAmt>28663</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>29287</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>18219</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>7773</CurrentTaxYearAmt>
        <TotalAmt>83942</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <TotalSupportAmt>968207</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>2755059</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.88110</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.94480</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc3">
      <OtherLiabilitiesOrgGrp>
        <Desc>PUBLICATION/SPONSORSHIP PENDING</Desc>
        <Amt>1810</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CREDIT CARD</Desc>
        <Amt>288</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>2098</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc4">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE NATIONAL COUNCIL OF SUPERVISORS OF MATHEMATICS (NCSM) IS A MATHEMATICS LEADERSHIP ORGANIZATION FOR EDUCATION LEADERS THAT PROVIDES PROFESSIONAL LEARNING OPPORTUNITIES NECESSARY TO SUPPORT AND SUSTAIN IMPROVED STUDENT ACHIEVEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS ELECT BOARD OF DIRECTORRS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS PRESENTED FOR BOARD APPROVAL PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>BOARD MEMBERS MUST FILE CONFLICT OF INTEREST STATEMENTS ANNUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES IT'S GOVERNING DOCUMENTS, AND OTHER DOCUMENTS AVAILABLE TO THE PUBLIC UPON REQUEST EITHER BY MAIL OR ONLINE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
