GeometryEditor: a web-based interactive geometry manipulative authoring system (abstract only)

GeometryEditor (previous code name: GeoSVG) is a Web-based environment for authoring interactive geometry manipulatives. Users may create on-line manipulatives to illustrate mathematical concepts for a hands-on learning environment. GeometryEditor provides standard authoring features, such as sketching, measurements, calculation, macros, iteration, loci, animation and coordinate systems. GeometryEditor also offers several its own authoring features, such as synchronized copy, parametric color and visibility, and mouse click events. The GeoSite provides the GeometryEditor authoring environment and a corresponding page authoring environment to assist in creating lessons around the manipulatives. Other people via the Internet can immediately view completed manipulatives and pages.