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: Nextdoor is a private social networking platform for neighborhoods. It allows residents to connect with people who live in their immediate neighborhood. Features include posting about local events, reporting crime/safety issues, finding/recommending local businesses, buying/selling used items, and more.
Type: software