- Idea: teach one named mental-maths trick at a time
- Collect 20 tricks, Friends-of-10 → L'Hôpital
- Pick a level and a trick (or mix them all)
- A "Teach me" lesson first + read-aloud
- Type the answer + Enter, with a streak counter
- A few misses → a breathe; Miro hosts
- Fills the screen on phone & desktop
- Keep adding new tricksplanned
✓ = done · ☐ = planned. Every game is built one step at a time like this.
