This was read to us by a guest teacher we had in for a Teacher's Pet presentation on Rocks and Minerals. This book is a great summary of what we learned in this unit. It touches on most of the concepts in our Grade 3 science unit.
Josh and Amy are learning everything about rocks from their friend Dave. And to organize their rock collection, they must practice the math skill of classification -- grouping objects by attributes such as color, shape, or size.