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This virtual manipulative enables the student to form and manipulate shapes on an online geoboard. A virtual geoboard is not limited by the number of bands or the manual dexterity of the student. Additionally, a measure function generates area and perimeter for shapes and, for single bands connected to two pegs, distance and slope. The formed shapes may be colored as a way to sort or enhance them. The activities link offers six exercises that explore area and perimeter or regular and irregular shapes. Instructions for using the applet, an outline for a lesson about modeling and area, and a link to the NCTM standard for measurement are included. Copyright 2005 Eisenhower National Clearinghouse
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