About Helen Gerretson
Helen Gerretson is a published author. A published credit of Helen Gerretson is Pre-service elementary teachers' understanding of geometric similarity: the effect of dynamic geometry software. : An article from: Focus on Learning Problems in Mathematics.To edit or update the above biography on Helen Gerretson, please Log In or Register.
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Published Works by Helen GerretsonClick a book's title or cover for more details and to read reviews
|Title, Creators, Comments / Reviews||Ages||Date Published|
|1. Pre-service elementary teachers' understanding of geometric similarity: ...
Author: Helen Gerretson
Publisher: Center for Learning
|Bestselling order determined by Amazon.com SalesRank(tm)|