Small practice tools. Big skills. One belt at a time.
Bright Belts makes free learning tools for kids. Each one trains a single skill until it's automatic, the way a martial artist earns belts.
Tools
Mental math · Ages 5–14NumNinjaFast, flexible mental math without a calculator, plus number lines, fractions, clocks, and money from piggy banks to tax. Adaptive rounds, strategy “Moves”, and tools for classes and families.
Play nowIn NumNinja · Ages 10–14Time MachineLive 20 pretend years of saving and investing in a few minutes, crash included. No sign-up.Spelling · Ages 5–14WordNinjaHear a word, build it from its parts, spell it from memory. Learn the rules that spell whole families of words, then the Greek and Latin roots inside long ones.
Try itMaps and the world · Ages 5–14GeoNinjaFour belt levels for every grade from Kindergarten to Grade 8: left and right, map keys and compass points, continents and oceans, countries and capitals, latitude, longitude and time zones.
Try itGames to play together · Ages 3+Fun ZoneNineteen games for friends and family, from Dice Dash and Memory Match to Pong and Simon Says. Pass one phone round, or play on one each. No sign-up.
PlayAll in one app: switch between the tools any time. More are on the way.
A few minutes a day
Short sessions that end on a win. Practice that fits between school and dinner.
Adapts to every child
Each child works at the edge of what they can do: challenged, but successful most of the time.
No ads, no tricks
No ads, no paid shortcuts, no guilt-trip notifications. Children never type messages to anyone.