Description: GeoGebra is free and open-source dynamic mathematics software for all levels of education. It combines geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. It can be used to teach math from elementary through university level.
Type: software
Pricing: Open Source
Description: Pencil2D is a free and open-source 2D animation software. It allows users to create traditional hand-drawn animation with an intuitive and easy to use interface. Pencil2D is available for Linux, Mac OS X and Windows.
Type: software
Pricing: Open Source