Geometer's Sketchpad is an excellent educational software produced and published by American Key Curriculum Publishing Company. 1996, the company authorized People's Education Publishing House to distribute the Chinese version of the software in China. It is a general teaching environment for mathematics and physics, providing rich and convenient creative functions, so that users can write their own teaching courseware at will. It is very powerful and can be said to be one of the best teaching software.

Just like its name is "2 1 century dynamic geometry", it can dynamically show the position relationship and operation change law of geometric objects, and it is the "sword" for mathematical physics teachers to make courseware! The software interface is simple and easy to operate, and consists of title bar, menu bar, toolbar, status bar, drawing window and recording window. Toolbars are selection tools (to realize the selection and translation, rotation and scaling of objects), point drawing tools, line drawing tools, circle drawing tools, text tools and object information tools in turn. Hold down the left mouse button on the selection tool and line drawing tool button for one minute, and more types of tools will pop up; You can select objects by clicking, Shift-clicking or dragging.