Description: Brilliant.org is an online platform that offers math and science problems and courses to help people improve their logical reasoning and problem-solving abilities. It uses interactive quizzes and puzzles to make STEM subjects more engaging.
Type: software
Description: Wikiversity is an online learning community hosted by the Wikimedia Foundation that is aimed at enabling everyone, including students and teachers, to learn through open collaboration. It features learning resources, projects, questions, and assignments as well as facilities for teaching and research.
Type: software
Pricing: Free