Math Forum: The Coordinate Plane (Chameleon Graphing) Sam the chameleon introduces graphing points on the numberline and the coordinate plane, for elementary and middle-school students. http: //mathforum.org/cgraph/cplane/
Math Forum: Geoboards - Scavo Geoboard lesson plans that deal with the length and area of two-dimensional geometric figures using the geoboard as a pedagogical device. http: //mathforum.org/trscavo/geoboards/contents.ht...
Tom Scavo's Tangrams A unit for grades 4-6 using tangrams to compute the area of polygons without formulas. http: //mathforum.org/trscavo/tangrams/contents.htm...
