![]() ![]() It can manipulate constructed objects "dynamically" by stretching or dragging while maintaining all constraints of the construction so that a seemingly infinite number of cases of a constructed figure can be viewed. It is far more than a construction or transformation tool, however. It also can perform transformations (translations, rotations, reflections, dilations) of geometric figures drawn or constructed on screen. The Geometer's Sketchpad includes the traditional Euclidean tools of classical geometric constructions. Additionally, all 13 Sketchpad activity modules, ranging from grade 3 mathematics through calculus, are available for complimentary download. No license for the beta software is required. Nonetheless, a new (2021) 64-bit version of Mac Sketchpad that is compatible with the new Apple M1 silicon chips is available as part of an ongoing beta test. In June 2019 McGraw-Hill announced they will no longer sell new licenses. There was also a version developed for the TI-89 and TI-92 series of Calculators. It also runs on Linux under Wine with a few bugs. Present versions run Microsoft Windows and Mac OS 8. ![]() Nicholas Jackiw, a student at the time, was the original designer and programmer of the software, and inventor of its trademarked " Dynamic Geometry" approach he later moved to Key Curriculum Press, KCP Technologies, and McGraw-Hill Education to continue ongoing design and implementation of the software over multiple major releases and hardware platforms. 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. The Geometer's Sketchpad is a commercial interactive geometry software program for exploring Euclidean geometry, algebra, calculus, and other areas of mathematics.
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