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Big and small

Sort the big things from the little ones. Comparing size comes before measuring it.

Sort it outAges 254 roundsPlays in the browser
Start playingNo sign-up, no install
Big and small on a tablet

How it works

    What it builds

    Grouping by colour, size and kind: the first real logical operation a child performs.

    Nothing in big and small can be lost or failed. A wrong answer stays on screen to try again, which is what keeps a two-year-old in the game long enough to learn from it.

    More sorting games →

    Common questions

    What age is Big and small for?+

    It is pitched at 2 to 5 year olds, though children either side of that often enjoy it too. Nothing is timed, so a younger child can simply take longer.

    Do I need to install anything?+

    No. Kidling runs entirely in the browser on a phone, tablet or laptop. There is no app to download and no store account involved.

    Is it free?+

    You can play without an account. A subscription unlocks the full personalised plan, the weekly worksheet packs and progress tracking.

    Are there ads?+

    No. There is no advertising anywhere in the product and nothing that links a child out of it.