AlgeBridge

A free, ad-free Algebra 1 course for students, built by students. The marketing site is algebridge.org and the platform is learn.algebridge.org.

What students get

• Algebra 1: 15 units and 52 skills, from working with units to modeling with functions. Each skill has a key idea, a video and practice with instant feedback, and the course tracks mastery skill by skill.
• Algebra 2: a second course that builds on the first.
• Review: finished skills come back for spaced review.
• Archie: an AI study helper that gives hints. It tells students it is an AI.
• Games and a house: practice earns Bridgeys, which students spend on a 3D house, and games such as Alge Carts ask practice questions as you play.

What teachers get

Classes, assignments with due dates, teacher-made student accounts, per-student progress, and class controls for games and the leaderboard.

Safety and privacy

• Student data lives in Supabase (Postgres) behind row-level security. A signed-out visitor reads nothing, and students cannot read each other's progress, email or messages.
• Typed text is checked for personal information (phone numbers, emails, addresses, handles) and for crisis language, which brings up 988 and Crisis Text Line.
• Messages, groups and calls have report and block.
• No ads, and student data is never sold.

The policies are at learn.algebridge.org/privacy and learn.algebridge.org/terms. Security reports go to [email protected].

Code

• index.html: the marketing site, served by GitHub Pages.
• src/: the platform, Next.js 15, React 19, TypeScript and Tailwind, deployed on Vercel.
• supabase/: the database schema and row-level security policies, one file per change, applied in date order.
• extension/: the AlgeBridge Hints browser extension.

npm install
npm run dev

Without NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY the platform runs local-only and keeps progress in the browser. Tests: npm run test:practice, npm run test:problems (solves every generated problem), npm run test:helper, npm run test:classroom.

License

Free for educational use.