C?mo funcionan las rampas, las cu?as y los tornillos (How Ramps, Wedges, and Screws Work) by Jim Mezzanotte
	List Price:   $22.00 Unit Price:   $17.60 You Save:   $4.40 (20%) ISBN-10:   0836874455 ISBN-13:   9780836874457 Publisher:   Gareth Stevens Publishing Category:   Spanish Books
Description/Notes
Forces and motion are key concepts in the elementary science curriculum. This Spanish-language series uses simple text, full-color photographs and a wealth of clear, instructive diagrams to help ELL students understand the principles behind simple machines. The text uses authentic language and is designed to build reading skills as well as knowledge of basic science concepts.