Mirror Rangoli

draw in one slice and the floor mirrors it into every slice. match the rangoli.

pour coloured powder in one slice of a rangoli and the floor mirrors it into every slice; match the target rangoli, calm and untimed, six levels and then free draw

A rangoli is a pattern poured on the floor in coloured powder, and at Diwali many homes make a fresh one at the door. Many are symmetric: one motif repeated round a centre. Here you pour in one slice and the floor copies the stroke into every slice, turned and mirrored, the way a kaleidoscope does. A floor of N slices makes 2N copies: N turns and N mirror images. The match counts how much of the target you covered in its colour and how little you spilled outside it.

Concepts: symmetry, pattern, rotation.

An interactive you play with one thumb, on Wundr.