Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Linear Functions

9-12

60 Minutes

• ##### Device
• TI-73 Explorer™
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition

TI Connect™

• ##### Accessories

CBL™/CBL 2™
Sensor - Motion Detector
TI Connectivity Cable
Vernier LabPro®

• ##### Other Materials
This is Activity 28 from the EXPLORATIONS Book:

## How Tall? Describing Data with Statistical Plots

#### Activity Overview

In this activity, students' will measure their heights using a motion detector and describe the data using the statistical concept called box plot.

#### Before the Activity

• Connect the motion detector to the DIG/SONIC port of the CBL 2™ or the DIG/SONIC 1 port of the Vernier LabPro®
• Connect the CBL 2™ or LabPro® to the calculator using the Unit-to-Unit cable
• See the attached PDF file for detailed instructions for this activity
• Print pages 279 - 286 from the attached PDF file for your class
• #### During the Activity

Distribute the pages 279 - 286 to your class.

• Position the motion detector 2.5 meters from the floor, pointing straight downward
• Measure the distance to the floor
• Each student stands under the motion detector
• Record the distance to the student's head
• Calculate the student's height
• Repeat the step for other students'
• Collect the data for all students' and determine the mean, minimum, median, and maximum value
• Draw a box plot
• #### After the Activity

Students' will analyze their data and complete the Data Collection and Analysis Sheet. They will also answer questions listed in it.

Review student results

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary