Dave's Down-to-Earth Rock Shop
- Binding: Paperback
- Publisher: Harpercollins Childrens Books
- Publish date: 01/01/2000
Description:
Josh and Amy have a rock collection, and they're learning everything about rocks from their friend Dave. When the time comes to organize their collection, Josh and Amy must practice the math skill of classification -- grouping objects by attributes such as color, shape, or size.
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