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The Geometer's Sketchpad is a commercial interactive geometry software program for exploring Euclidean geometry, algebra, calculus, and other areas of mathematics.It was created as part of the NSF-funded Visual Geometry Project led by Eugene Klotz and Doris Schattschneider from 1986 to 1991 at Swarthmore College. [1]
Interactive geometry software (IGS) or dynamic geometry environments (DGEs) are computer programs which allow one to create and then manipulate geometric constructions, primarily in plane geometry. In most IGS, one starts construction by putting a few points and using them to define new objects such as lines , circles or other points.
In 1993, Marion Walter's Theorem was named for her after she and a colleague discovered the result while experimenting with Geometer's Sketchpad.The theorem states that if each side of an arbitrary triangle is trisected and lines are drawn to the opposite vertices, the area of the hexagon created in the middle is one-tenth the area of the original triangle.
Doris J. Schattschneider (née Wood) is an American mathematician, a retired professor of mathematics at Moravian College.She is known for writing about tessellations and about the art of M. C. Escher, [1] [2] for helping Martin Gardner validate and popularize the pentagon tiling discoveries of amateur mathematician Marjorie Rice, [3] and for co-directing with Eugene Klotz the project that ...
Secondary school students are given a workshop to improve their grasp of mathematics, based on the program The Geometer's Sketchpad. Mathematics Teaching Program; Created in 1999, this program seeks to undertake activities to support mathematics teaching.
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The Geometer's Sketchpad; Maple; Matlab / GNU Octave; Mathematica; Matheass; Math Blaster; Microsoft Mathematics; MathFacts in a Flash; SAGE - free software ; TK Solver; Tux, of Math Command- free software
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