Ruler Racers
Free
MathMathAges 5–7

Line up race cars at the start, find the longer one, then measure them with paper clips and a ruler.

41 KB to save for offline play

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How to play

Your child gets to know length with a garage full of race cars: every car starts at the same line, so children can see which one is longer or shorter and put three cars in order from shortest to longest. Then they measure cars with paper clips laid end to end and read a simple ruler that starts at 0, counting in whole units. There are no timers and no losing: a wrong answer gets a gentle spoken hint, such as counting the clips together or a line from the car's nose down to the ruler, and every finished level wins a new car for the race track and a star.

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