Number Pyramids
Jennifer Silverman
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Classifying Quadrilaterals
Anthony OR 柯志明
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Circle vs. Sphere
Tim Brzezinski
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Graph the Line
Steve Phelps
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Sections of Rectangular Prisms (Cuboids)
Anthony OR 柯志明
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Sections of Triangular Prisms
Anthony OR 柯志明
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Holiday Fun!
Tim Brzezinski
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Four colors theorem
Rafael Losada Liste
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Exploring Rocket Motion
Stephen Jull
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Completing the Square
Irina Boyadzhiev
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