Seeking to revitalize a unit on rocks, sand, and soil for first-graders, the authors created new hands-on lessons. These included testing the hardness of rocks, making models of the Earth, and sorting rocks. As a culminating activity, students participated in a series of Rock Day events that focused on the three different types of rocks and the rock cycle.


Type Journal ArticlePub Date 1/1/2004Stock # sc04_041_04_40Volume 041Issue 04

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