What is the average length of your step?

One more discovery to be made

You have walked on the 10 meter path 10 times. You have recorded the number of steps each time. Now please work out the average of all 10 numbers in your notebook.

This number is the average number of steps you take to cover the distance of 10 meters.

Look at this number and compare it with the numbers in the table.
 

Are all the numbers of the table close to this number?

Now you have two predictive powers in your hands: one is "the range" and second is "the average".

Divide the distance you walked with "the average" to find out the average length of your step.

So, the average length of your one step = 10 meter/ average number of steps

What is the average length of a step?

Test your predictive power
 

Walk a much longer distance that you can measure with your paper tape. Now count your steps while you walk. Multiply it with the average length of your step to get the lenght of the distance.
 

Verify your finding
 

Now use your paper tape to measure the same length that you just measured using your steps. 

Compare these two numbers. Are they close enough?

Distance from your home to the school

To know the distance from your home to the school, count your steps to the school from home every day.

Please make the following table in your notebook to keep a record of these numbers.
 

                     Table 1.5: Number of Steps

Average Number of Steps =..............................................

The distance between of your home and the school = Average number of steps * the average length of your step

Hurrah!