Richard Tchen

Richard Tchen is an author and a project coordinator for the Math Forum, an online mathematics education center. He lives in Philadelphia, Pennsylvania.

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by the author

Corkscrew Counts

Donna Jo Napoli and Richard Tchen; illustrations by Anna Currey
Henry Holt and Co.

At Corkscrew’s party, everyone wants to play. Every game the kids try needs a different number of players, and they never have the right amount. The little pig...

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