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        <ReturnReference>PART III, LINE 4:</ReturnReference>
        <Explanation>AT THIS POINT, THE MOMATH TEAM HAS DESIGNED AND IS IN THE PROCESS OF FABRICATING OVER FORTY STATE-OF-THE-ART HANDS-ON EXHIBITS WHICH BRING OUT THE WONDERS OF MATHEMATICS. INTERESTED PARTIES CAN LEARN MORE AT HTTP://MOMATH.ORG (THE WEBSITE OF THE MUSEUM OF MATHEMATICS). THE MATH MIDWAY (MATHMIDWAY.ORG) IS A TRAVELING EXHIBITION DESIGNED FOR USE IN SCIENCE CENTERS AND MUSEUMS, CELEBRATING THE WONDERS OF MATHEMATICS. IT CONSISTS OF TWENTY HANDS-ON, INTERACTIVE EXHIBITS, EACH ALLOWING VISITORS THE OPPORTUNITY TO EXPLORE A MATHEMATICAL CONCEPT AND DISCOVER SURPRISING PRINCIPLES OR PHENOMENA. THE MOST IMPORTANT ACTIVITY OF THE MUSEUM OF MATHEMATICS (MOMATH) IS TO PREPARE TO OPEN A STATE-OF-THE-ART INNOVATIVE VISITOR CENTER IN MANHATTAN. THIS PHYSICAL MUSEUM WILL BE THE ONLY INSTITUTION OF ITS KIND IN NORTH AMERICA, AND THE ONLY HANDS-ON SCIENCE CENTER IN MANHATTAN, NY. FILLED WITH INTERACTIVE EXHIBITS THAT ALLOW OPEN-ENDED EXPLORATION AND SURPRISING DISCOVERIES, THE MUSEUM WILL FINALLY PROVIDE A PLACE WHERE KIDS AND ADULTS CAN GO TO BECOME EXCITED ABOUT MATHEMATICS.</Explanation>
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        <Identifier>PART XI, LINE 2D - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>COST OF GOODS SOLD - REPORTED ON PART VIII, LINE 10B: $246,912</Explanation>
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      <Form990ScheduleDPartXIII>
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        <Explanation>COST OF GOODS SOLD - REPORTED ON PART VIII, LINE 10B: $246,912</Explanation>
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        <NameOfEvent2>OPENING CEREMONY</NameOfEvent2>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE MUSEUM OF MATHEMATICS HAS ITS FORM 990 PREPARED BY AN OUTSIDE ACCOUNTING FIRM AND HAS ESTABLISHED THE FOLLOWING REVIEW PROCESS TO ENSURE THAT THE INFORMATION REPORTED IS COMPLETE AND ACCURATE. WHEN THE FORM 990 HAS BEEN PREPARED, REVIEWED BY MANAGEMENT, AND IS READY TO BE FILED WITH THE INTERNAL REVENUE SERVICE, IT'S SUBMITTED ELECTRONICALLY TO MEMBERS OF THE ORGANIZATION'S GOVERNING BODY FOR ANY COMMENTS PRIOR TO ITS SUBMISSION. ANY COMMENTS ARE THEN GROUPED, SUMMARIZED, AND PROVIDED TO THE COMPLIANCE OFFICER OR COMMITTEE IN CHARGE OF FILING THE RETURN FOR THEIR REVIEW. EACH ISSUE IS DOCUMENTED AND ADDRESSED UNTIL THE RETURN IS FINALIZED AND APPROVED FOR FILING.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>THE MUSEUM OF MATHEMATICS CURRENTLY HAS IN PLACE A CONFLICT OF INTEREST POLICY THAT IT ANNUALLY MONITORS AND ENFORCES. THE BOARD CURRENTLY MANDATES THAT ALL MEMBERS OF MANAGEMENT AND THE GOVERNING BODY ANNUALLY SIGN A CONFLICT OF INTEREST POLICY AND DISCLOSE ANY POTENTIAL OR ACTUAL CONFLICTS THAT MAY EXIST. THE SIGNED CONFLICT OF INTEREST POLICY IS KEPT ON FILE AND BOARD MEMBERS MAY NOT VOTE ON AN ISSUE ON WHICH THEY HAVE A CONFLICT. THE MUSEUM OF MATHEMATICS ADOPTED A WRITTEN WHISTLEBLOWER POLICY ON MARCH 5, 2010. THE POLICY IS INCORPORATED IN THE EMPLOYEE HANDBOOK AND CREATES PROCEDURES FOR EMPLOYEES ACTING IN GOOD FAITH TO REPORT IN CONFIDENCE THE MISUSE OF A CHARITY'S ASSETS TO VARIOUS MANAGEMENT OFFICIALS. THE POLICY ASSIGNS A COMPLIANCE OFFICER AND CONTAINS PROCEDURES FOR REPORTING SUCH VIOLATIONS IN CONFIDENCE AND WITHOUT RETALIATION.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Explanation>FORM 990, PART VI, SECTION B, LINE 15: THE BOARD OF TRUSTEES OF THE MUSEUM OF MATHEMATICS HAS A COMPENSATION REVIEW COMMITTEE THAT REVIEWS OFFICER COMPENSATION. DOCUMENTATION OF COMMITTEE DISCUSSIONS, DELIBERATIONS AND DECISIONS ARE DOCUMENTED IN THE COMMITTEE MINUTES. THE COMMITTEE MOST RECENTLY COMPLETED THIS PROCESS ON JULY 2011.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 18</ReturnReference>
        <Explanation>THE MUSEUM OF MATHEMATICS WILL MAKE ITS FORM 990 AVAILABLE FOR PUBLIC INSPECTION AS REQUIRED UNDER SECTION 6104 OF THE INTERNAL REVENUE CODE BY POSTING IT ON GUIDESTAR.ORG AND OTHER SIMILAR TYPES OF WEBSITES. IN ADDITION, FORMS 990 AND 1023 ARE AVAILABLE UPON WRITTEN REQUEST AT 134 WEST 26TH STREET, SUITE 4S, NEW YORK, NY 10001 OR BY CALLING THE ORGANIZATION DIRECTLY AT (212) 542-0566.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>THE MUSEUM OF MATHEMATICS' GOVERNING DOCUMENTS, FINANCIAL STATEMENTS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE UPON WRITTEN REQUEST AT 134 WEST 26TH STREET, SUITE 4S, NEW YORK, NY 10001 OR BY CALLING THE ORGANIZATION DIRECTLY AT (212) 542-0566.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>AUDIT REVIEW PROCESS AND SELECTION OF INDEPENDENT AUDITOR</Identifier>
        <ReturnReference>FORM 990, PART XII, LINE 2C</ReturnReference>
        <Explanation>THE ORGANIZATION'S PROCESS FOR OVERSIGHT OF THE AUDIT OF ITS FINANCIAL STATEMENTSAND THE SELECTION OF AN INDEPENDENT AUDITOR HAS NOT CHANGED FROM THE PROCESS FOLLOWED IN THE PRIOR YEAR.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>