Sorting machine

Sorting machine for ages 5+: Pick from 6 difficulties across 200+ random rules. Play free right in the browser, no account or install needed.

Sorting machine sends items through a machine that follows a rule, and the child’s job is to work out that rule and send each item the right way. Every item carries three attributes — colour, shape and size — so a rule can be “yellow”, “round”, or a combination of both. Six difficulty tiers are there to choose from, and each play draws only a random subset from a pool of more than two hundred rules, so playing again means new rules. It is classification and pattern-finding practice, which underpins both mathematics and later programming.