Its accurate drawings of geometric figures make it a useful tool for illustrating mathematical articles for publication. Thus it is a natural tool for making or testing conjectures about geometric figures. 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. The Sketchpad Repository contains over 200 videos, with Sketchpad and Web Sketchpad tutorials as well as an archive of Sketchpad webinars that were offered by Key Curriculum Press. A license-free Windows version of the software is also available. Nonetheless, a license-free 64-bit version of Mac Sketchpad that is compatible with the latest Apple silicon chips is available. In June 2019, McGraw-Hill announced that it would 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 MacOS Ventura. 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. Links to other sites discussing Sketchpad or presenting Dynamic Geometry activities, lessons, and ideas.The Geometer's Sketchpad is a commercial interactive geometry software program for exploring Euclidean geometry, algebra, calculus, and other areas of mathematics. User GroupsReports from Sketchpad User Groups, which are held every year at the Joint Mathematics Meeting and the national conference of the National Council of Teachers of Mathematics.īibliographyBooks, reviews, activities, and research papers concerning Sketchpad and Dynamic Geometry. Recent TalksLinks to online versions of, and handouts to, recent Sketchpad presentations, talks, and workshops offered by members of the Sketchpad group at KCP Technologies and Key Curriculum Press. Sketchpad for TI CalculatorsInformation and links regarding Sketchpad for Texas Instruments' graphing calculators, including ordering information, sample sketches, and FAQs. Information, instructions,and credits for Sketchpad Explorer, the Sketchpad document explorer for iPad. Sketchpad Sketch Exchange is your online community for sharing Sketchpad activities, tips, questions, and ideas.ĭownloadable sketches showcasing advanced mathematical topics and advanced sketch construction techniques, from Sketchpad authors around the world. The Sketchpad StoryA brief history of the conception and development of The Geometer's Sketchpad and its use in educational settings around the world.Ĭlassroom ActivitiesInformation about classroom-ready Sketchpad activities, including freely downloadable activities, commercial activities in print, and links to other activity providers.Įxample projects from the activity book that accompanies Sketchpad.
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General ResourcesThese pages provide resources and support for using The Geometer's Sketchpad to explore mathematics.