LESSON 5 Arm Span vs. Height

The TIMS Laboratory Method

Irma and Jerome noticed that the The Four Servants story took place in China. All the measurements were of Chinese people. They wondered if the four servants would have found the same results if they had measured the people in Irma and Jerome's neighborhood.

Irma and Jerome decided to use the TIMS Laboratory Method to help them solve problems involving hand length and height in their neighborhood. The four servants used this four-step method. First, Irma and Jerome drew a picture of the steps they would follow in the experiment. Irma's picture is shown below.