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: ReadCube Papers is a free reference manager and PDF reader designed for researchers, clinicians, and scientists. It allows you to easily organize, read, highlight, and annotate PDFs across multiple devices.
Type: software