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Presents explorations which involve the folding of a paper circle into a broad range of geometric shapes including equilateral triangles, trapezoids, rhombi, quadrilaterals, pentagons, hexagons, sectors, tetrahedra and truncated tetrahedra. In the process of folding, students encounter medians, angle bisectors, radii, chords, major and minor arcs, areas and perimeter relationships among shapes. etc. | |