Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Linear Functions

9-12

30 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-Navigator™

## Is there a relationship between your fist and shoe size?

#### Activity Overview

Students will measure the circumference of their fist and list their shoe size. The lists will be loaded using TI-Navigator™ in the activity center.

#### Before the Activity

The students need to know the concept of slope before doing this exercise. If they know how to write equations, it will extend the activity.

#### During the Activity

Load the activity settings attached. Once everyone has sent their list, you can send the completed list back to the students. I have let kids get into groups and discuss what they think the relationship is between the two items. You may have them do a linear regression of the data to see what the slope represents.

#### After the Activity

I have the sent them home that day with the question of " Are there other relationships in terms of length comparing the human body?" It is interesting to hear all the possible combinations!