# 21IFM — Illustrated Mathematics

> Story-led, illustrated mini lessons that connect mathematical foundations and build the habit of thinking for yourself.

21IFM helps learners start with foundations, connect ideas, and practise asking why, making predictions, and explaining what they understand. Every question is welcome. AI can offer answers; the lessons encourage learners to question them and build their own understanding.

## Topics

Topic roadmaps cover Quant Finance, Machine Learning, AI, and Essential Calculus. These include planned topics; the currently available introductory mini lessons are listed below.

## Public pages and current lessons

- [21IFM — Illustrated Mathematics | Mini Lessons](https://21ifm.com/): Build the habit of thinking with stories, illustrations, and interactive mathematics mini lessons. Start with foundations and explore quant finance, machine learning, AI, and calculus.
  - [Readable Markdown summary](https://21ifm.com/site-content/home.md)
- [Meet Zon · About Illustrated Mathematics · 21IFM](https://21ifm.com/about): Meet Zon and build the habit of thinking: start with foundations, connect ideas, and practise questioning answers—including AI’s.
  - [Readable Markdown summary](https://21ifm.com/site-content/about.md)
- [Basics Mathematics — Free Illustrated Mini Lessons | 21IFM](https://21ifm.com/basics): Free visual mathematics mini lessons: explore sine on the unit circle, connect it to projectile motion, and learn through questions, interactive models, and quizzes with hints.
  - [Readable Markdown summary](https://21ifm.com/site-content/basics.md)
- [What does sine mean? — A mini lesson with Zon | 21IFM](https://21ifm.com/basics/sine): Watch Zon’s sine story, explore the interactive unit circle, and test your understanding with questions and hints.
  - [Readable Markdown summary](https://21ifm.com/site-content/sine.md)
- [Which launch angle goes farthest? — A challenge with Zon | 21IFM](https://21ifm.com/basics/best-launch-angle): Carry the sine idea forward: keep a football’s speed at 16 m/s, test launch angles, and help Zon find the greatest range.
  - [Readable Markdown summary](https://21ifm.com/site-content/best-launch-angle.md)

The About page includes wide and portrait versions of the Meet Zon introduction. Interactive explorations and quizzes require JavaScript; the page summaries and linked videos are directly accessible.

## Site information

- [Sitemap](https://21ifm.com/sitemap.xml)
- [Privacy](https://21ifm.com/privacy-policy.html)
- Contact: contactus@21ifm.com