WebExpresser
The widget factory Web-Expresser is a tool to support learners by taking their first steps towards an understanding of algebra. It provides an environment were users may produce colored patterns consisting of squared pieces of four different colors.
Geogebra
The widget factory GeoGebra is a Dynamic Mathematics Software. Its main features are related to dynamic geometry, but many aspects of algebra and analysis may also be treated. Applications include geometric constructions, graph plotting, analysis of functions in one variable, conic sections, and others.
