Dave's Down-To-Earth Rock Shop

By (author): "Cat Bowman Smith, Stuart J. Murphy"
Genres:Science books  Geology books  Mathematics books  
Publish Date: January 1st 2000
Dave's Down-To-Earth Rock Shop
ISBN0739843923
ISBN139780739843925
AsinDave's Down-To-Earth Rock Shop
Original titleDave's Down-To-Earth Rock Shop (Mathstart)
SeriesMathStart: Level 3
As they consider sorting their rock collection by color, size, type, and hardness, Josh and Amy learn that the same objects can be organized in many different ways.