Basketball

The same love, at every age. This door has games for 3 of the four age groups so far.

The ladder

Ages 3–5 Not made yet.
The nearest rung is one up, Ages 6–8: Every Way to Make 10 →
Ages 6–8
- Every Way to Make 10Find every way to score exactly ten points
Ages 9–14
- Points per ShotCompare points per shot for twos, threes and corners
Ages 15–18
- The Hot-Hand BenchmarkAverage streaks over every possible game and find the bias

Two rules every rung keeps

The Fade Rule. Every game ends on a plain screen: the same numbers with the basketball words gone, so the maths leaves with you.

The Own-Lane Rule. Your numbers are compared only with your own past, never with anyone else's, and they stay on this device.

Problems built on something you love help most when the context carries the maths, not when it decorates it. These ladders are a design, not a promise.

Ask a grown-up tonight: “Where on the court do you like to shoot from, and why?”

Grown-ups: Spark & Whetstone has a Basketball door too.

Other doors · Your door and your ages