A complete course

Algebra 1

A complete, self-paced Algebra 1 course for an adult who knows arithmetic: a friendly textbook to read and a one-on-one tutor to learn with, plus extra practice when you want it. 13 units and 53 lessons in all, from foundations to a quadratics capstone plus a core unit on data and statistics, each quotable by a short code.

• Student guide
  Start here: how the course works and how to learn with the tutor.
• Textbook
  The lessons in full — worked examples, practice, and 23 computed figures, each with a reference code you can deep-link or quote.
• Tutor guide
  273 extra parallel-form problems with full worked solutions, plus a mixed-review set per unit.

The tutor is a Claude skill: download algebra-1-tutor.zip and upload it in the Claude app or on claude.ai, and Claude becomes a patient one-on-one teacher with this whole course in front of it. New to that? See how to set it up and learn with it. It works on the free plan.

See a code like 12.5.w2 beside a worked example? Quote it to the tutor — "explain 12.5.w2" — and it pulls up that exact item, re-checks the math, and walks you through it.

Math is rendered with KaTeX. The whole course is generated from one source of truth and held correct by sympy and a CI gate.