GeoGebra

GeoGebra provides a suite of free digital tools for creating, solving, and visualizing mathematical problems. Users can graph functions, explore geometry, work with algebraic expressions, and access calculators that support calculations from basic arithmetic to 3‑D mathematics. The platform also offers a photo‑based solver that generates step‑by‑step explanations for homework questions.

The software is aimed at teachers and students from grades 4 through 12, supporting classroom activities, collaborative whiteboards, and real‑time progress monitoring. It integrates with learning management systems and supplies curated lesson resources and practice materials aligned with curricula in number sense, operations, algebra, measurement, geometry, probability, and statistics.

GeoGebra distinguishes itself by combining interactive visualizations with a community‑driven ecosystem that lets educators share materials and students engage in discovery‑based learning. It runs on macOS and other platforms, and its free availability has led to widespread adoption by millions of educators and learners worldwide.