Unit 5 Contents

Mrs. Dewey showed all the students in Room 204 how to find the median and the mean using connecting cubes. Students worked in pairs to complete the activity. Irma and Tanya's work is described on the following pages. Work with a partner to follow their example.

Irma and Tanya took turns pulling a handful of cubes from a paper bag and then building towers with the cubes. Together they made the five towers shown in the picture.

6. With your partner, build towers with the same number of cubes as in the picture.

Mrs. Dewey asked students to use one number, an average, to describe all of the towers. One way to do this is to find the median. To do this, the girls lined up their towers from shortest to tallest.

7. Line up your towers as shown in the picture.
8. The number of cubes in the middle tower is the median. What is the median number of cubes?