There is a tape measure with a range of 2m. Please design a simple way to estimate the distance from your home to the school and write specific steps
1, go 5 steps, with tape measure respectively, each time step size, the average value is L.2, walk home to school, count the number of steps used for n3, distance S=nL
Find a map and measure the distance to your school on the map, then count it according to the scale.
First check you every step of the long (test several times, the average), then walk from your home to school, the number of step count you go, will you remember step multiplied by the number of each step length can be obtained
