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The Math Program Sign
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Grandma's Gone with the Wind Plates
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Grandpa Cohen (The Math Man) in His Basement Classroom
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Grandpa Cohen (The Math Man) in His Basement Classroom
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Grandpa Cohen (The Math Man) in His Basement Classroom
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Cube Sculptures
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Oscilliscope
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Calculus By & For Young People
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Metal Cabinet in the Math Room
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Drawings in the Math Room
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Photos in the Math Room