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.
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Published Works by Helen Gerretson
Click 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 |
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06/22/2004 Add | |||
| Add Review | |||||
| Bestselling order determined by Amazon.com SalesRank(tm) | |||||
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