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        <CurrentTaxYearMinus4Years>193946</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>166958</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>162427</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>352849</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>169087</CurrentTaxYear>
        <Total>1045267</Total>
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      <Total170>
        <CurrentTaxYearMinus4Years>193946</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>166958</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>162427</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>352849</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>169087</CurrentTaxYear>
        <Total>1045267</Total>
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      <PublicSupportTotal170>1045267</PublicSupportTotal170>
      <GrossInvestmentIncome170>
        <CurrentTaxYearMinus4Years>11317</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>14973</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>32283</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>-5528</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>30141</CurrentTaxYear>
        <Total>83186</Total>
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        <CurrentTaxYearMinus3Years>60253</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>106085</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>72768</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>42355</CurrentTaxYear>
        <Total>323488</Total>
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      <TotalSupport>1451941</TotalSupport>
      <GrossReceiptsFromAdmissionsEtc>719089</GrossReceiptsFromAdmissionsEtc>
      <PublicSupportPertcentage170>0.71990</PublicSupportPertcentage170>
      <PublicSupportPertcentPriorYear>0.72000</PublicSupportPertcentPriorYear>
      <ThirtyThreePercntTestsCY170>X</ThirtyThreePercntTestsCY170>
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      <GeneralExplanation>
        <Identifier>ORGANIZATION'S MISSION</Identifier>
        <ReturnReference>FORM 990 - ORGANIZATION'S MISSION</ReturnReference>
        <Explanation>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.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>ALL OTHER ACCOMPLISHMENT DESCRIPTION</Identifier>
        <ReturnReference>FORM 990, PAGE 2, PART III, LINE 4D</ReturnReference>
        <Explanation>OTHER EXEMPT PURPOSE ACCOMPLISHMENTS</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CLASSES OF MEMBERS OR STOCKHOLDERS</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 6</ReturnReference>
        <Explanation>MEMBERS</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>ELECTION OF MEMBERS AND THEIR RIGHTS</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 7A</ReturnReference>
        <Explanation>MEMBERS ELECT BOARD OF DIRECTORRS</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>ORGANIZATION'S PROCESS USED TO REVIEW FORM 990</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 11B</ReturnReference>
        <Explanation>FORM 990 IS PRESENTED FOR BOARD APPROVAL PRIOR TO FILING.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>ENFORCEMENT OF CONFLICTS POLICY</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 12C</ReturnReference>
        <Explanation>BOARD MEMBERS MUST FILE CONFLICT OF INTEREST STATEMENTS ANNUALLY.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>GOVERNING DOCUMENTS DISCLOSURE EXPLANATION</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 19</ReturnReference>
        <Explanation>THE ORGANIZATION MAKES IT'S GOVERNING DOCUMENTS, AND OTHER DOCUMENTS AVAILABLE TO THE PUBLIC UPON REQUEST EITHER BY MAIL OR ONLINE.</Explanation>
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</Return>