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Annenberg Foundation
Geometry 3D Shapes: Surface Area and Volume
Whether you wrap it or fill it, you're using geometric concepts. Classmates use an interactive approach to learn how to find volume and surface area of cylinders and prisms in the second lesson in a five-part series. The online lesson...
Annenberg Foundation
Annenberg Learner: Rock Cycle Interactives
The tutorial examines the rock cycle. Topics included are types of rocks, how rocks change, and a rock cycle diagram. There is also an introduction and an interactive activity to assess learners on concepts analyzed.