Mesh two gears and read the ratio — set the spins, build the gear, or find the rate.
Two meshed gears turn together, and the child works out how many times the small gear spins for the big gear's turns — setting the spins, the gear's teeth, or the ratio itself. The meshing law (teeth × turns balance) makes gear ratios and inverse proportion concrete. Best for Grades 5–6.
A free, no-signup, no-ads math game for Grades 5–6 — practising ratios, proportional-reasoning, unit-rate, division, inverse-proportion. Play in your browser on the KidsDoMath games hub or explore more Ratios & Rates games.
By grade level: 5th Grade Math Games6th Grade Math Games
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What math does Gear Ratio Garage practice? Gear Ratio Garage practices Ratios, Proportional Reasoning, Unit Rate, Division. Two meshed gears turn together, and the child works out how many times the small gear spins for the big gear's turns — setting the spins, the gear's teeth, or the ratio itself.
What grade is Gear Ratio Garage for? Gear Ratio Garage is built for Grades 5–6 (ages 10–12). It sits in the Ratios & Rates strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Gear Ratio Garage? Mesh two gears and read the ratio — set the spins, build the gear, or find the rate.
Is Gear Ratio Garage free to play? Yes. Gear Ratio Garage is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.