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InterMath: Geometry

This site was developed at the University of Georgia to support middle school teachers in their instruction of mathematics. On this particular page you’ll find investigation of circles, quadrilaterals, triangles, polygons, and 3-D objects. Each section includes many recommended sample problems, extended learning problems, and information about how the sections reflect state and national standards. There is also a very complete interactive dictionary for teachers, students, and parents. The Constructionary is an interactive that shows how to construct various geometric principles on the Geometric Sketch Pad.

courtesy of Knovation