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        <DepreciationAmt>324117</DepreciationAmt>
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      <OtherLandBuildingsGrp>
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      <TotalBookValueLandBuildingsAmt>16828</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X : FIN48 Footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization is a qualified organization exempt from federal income and California franchise taxes under the provisions of Sections 501(c)(3) of the Internal Revenue Code ("IRC") and 23701(d)of the California Revenue and Taxation Code, respectively. The Organization has evaluated its current tax position and has concluded that as of December 31, 2023, the Organization does not have any significant uncertain tax positions for which a reserve would be necessary.</ExplanationTxt>
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      <InitialContractExceptionInd>false</InitialContractExceptionInd>
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        <PersonNm>Anthony Roy</PersonNm>
        <TitleTxt>VP, Engineering</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Carol Lloyd</PersonNm>
        <TitleTxt>VP, Editorial Dir</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Elliot Beaudoin</PersonNm>
        <TitleTxt>Chief Product Off.</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Gregory Becker</PersonNm>
        <TitleTxt>Sr. Software Engin</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jonathan Deane</PersonNm>
        <TitleTxt>CEO</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Mohammad Afridi</PersonNm>
        <TitleTxt>Sr. Software Engin</TitleTxt>
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        <NontaxableBenefitsFilingOrgAmt>15373</NontaxableBenefitsFilingOrgAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 will be sent to the Board for review prior to submission to the IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board makes periodic inquiries regarding potential conflict of interest during scheduled Board meetings.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>When hiring the CEO, the Board will perform a thorough review to determine suitable compensation. This process may include a review of comparability data such as compenstion surveys, written employment contracts and form 990's of similar organizations. The Board will retain documentation of the deliberation and final decision. When hiring other key employees, the Chief of Staff will perform a thorough review to determine suitable compensation. This process includes a review of the comparability data from tools such as Payscale. The Chief of Staff will retain documentation of the deliberation and final decision.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15b</FormAndLineReferenceDesc>
        <ExplanationTxt>The same process described above for the CEO and top management also applies to key employees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GreatSchools Form 990 and Financial Statements are available via a link on the GreatSchools website. Form 990-T, and goverance policies are available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>