This website allows you to use virtual manipulatives to represent negative and positive numbers. Follow the directions once you click on each link.
http://nlvm.usu.edu/en/nav/frames_asid_161_g_2_t_1.html
http://nlvm.usu.edu/en/nav/frames_asid_162_g_2_t_1.html
Wednesday, February 18, 2009
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I didn't like this one.
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