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Learn Math With Games
Janelle McFeetors
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Online Manipulatives
Chad Williams
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Matchstick Puzzles
Avi Megiddo
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Dan Meyer
Dan Meyer
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Marian Small
Marian Small
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Christina Tondevold
Christina Tondevold
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541 Problems Worth Solving
Alicia Burdess
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Lissa D’Amour
Lissa D'Amour
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Geometric Puzzles
Catriona Shearer