Education Technology

# Activities

• ##### Subject Area

• Math: Middle Grades Math: Algebraic Thinking

6-8

45 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-84 Plus C Silver Edition
• TI-84 Plus CE

TI Connect™

## Breathtaking Scatter Plots

#### Activity Overview

In this activity, students will gather data by recording estimates of how long they think they can hold their breath and the actual amount of time. Then, they will create scatter plots and box plots to analyze the data.

[All recordings taken on dry land]

#### Key Steps

• Students will gather data and then plot scatter plots and box plots to analyze the data. First, students will estimate the time they can hold their breaths, measure the actual time they can hold their breaths, and create a scatter plot of L1 (estimate) versus L2 (actual).

• Then, students will investigate the XY-line through discussing how the scatter plot would change if the actual and estimated values were identical.

• Finally, students will create box plots to compare the data and draw conclusions.