About Concentration Grids

Concentration Grids is a free way to practice focus. Find the numbers in order, as fast as you can, on a grid of 10, 25, 50 or 100 numbers, or try the classic Schulte table. Play online or print a fresh set of sheets.

Mike first built it to help youth soccer players train a valuable mental skill: holding focus while scanning quickly under time pressure. Today most players are teachers and students, in classrooms around the world, using it as a warm-up, a brain break or a timed challenge.

There are no accounts and no ads. Your practice history stays in your own browser.