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Title: A%20Comparison%20of%20Concrete%20and%20Virtual%20Manipulative%20Use%20in%20Third-%20and%20Fourth-Grade%20Mathematics - PowerPoint PPT Presentation
Description: A Comparison of Concrete and Virtual Manipulative Use in Third- and Fourth-Grade Mathematics Barbara A. Burns Ellen M. Hamm Purpose Compare the effects of virtual ... – PowerPoint PPT presentation
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