Maths, but a game.
16 games. No sign-up, no download. Works on the phone in your pocket and on the board at the front.
Today's shelf
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Make One
One is three eighths and what?
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Square It
40 × 34 + 9. That is 37 squared.
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Tens First
Tens with tens, ones with ones. Then put it back together.
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Move the Point
The digits move. The point stays where it is.
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Unit Rush
Find one unit, and the rest of the problem falls open.
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Bigger or Smaller?
One tap. Decide before you work it out.
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Line It Up
Points under points. The ends can go where they like.
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Area Rush
Cut the rectangle into tens and ones, and the hard one gets easy.
Running this with a class?
Open a room, put the code on the board, and everyone plays the same questions at the same moment — thirty phones, no app, no logins for the children. Afterwards you get the part a leaderboard never shows you: which question two thirds of the room got wrong, and what they put instead.
Set up a teacher account Free. Children never need one.
The games are one part of it. There is also a planner, a paper builder and a few hundred worksheets — all free for your own classes.