Being built in public

Lessons you play, not watch.

Tiny steps, things that talk back, one idea per lesson.

Two lessons are open: pick one. The rest of the site opens when the Percent course is done.

Start here

The phone says: Hi! I'm a phone.

Percent · lesson 1 of 4

Out of a hundred

23 steps in 3 parts · about 8 minutes · ages 10–12

Sound is nice, but not needed.

The build, day by day

A short video with every update. Real footage, nothing mocked up.

Day 2 · 8 October 2026 · 23 seconds

Statistics 1 being played, each of its characters in a voice of its own, and what is new.

What's built, what's next

One rung at a time. It opens to everyone at the top.

  1. The lesson kit, and the first two lessons made with it (done)
  2. The player: any lesson, with sound and touch, on a phone or an iPad (done)
  3. The site, drawn on paper like the lessons; it installs like an app (done)
  4. Online at tinkerclick.com, tested on real phones (done)
  5. Voices for Statistics 1 (done)
  6. Accounts, so your progress follows you to every device (done)
  7. Seeing which steps learners get stuck on (done)
  8. Points, days in a row, a toolbox, a certificate (done)
  9. Practice sheets and the final case (done)
  10. The Percent course, complete (now)
  11. Open to everyone

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