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  • Subject Area

    • Math: Algebra I: Data Analysis
    • Math: Elementary Math: Probability, Statistics and Data Analysis
    • Math: Middle Grades Math: Statistics and Probability
    • Math: PreAlgebra: Probability, Statistics and Data Analysis
    • Math: Statistics: Data Analysis

  • Author

    Texas Instruments

  • Level


  • Activity Time

    60 Minutes

  • Device
    • TI-83 Plus Family
    • TI-84 Plus
    • TI-84 Plus Silver Edition
  • Software

    TI Connect™

  • Accessories

    CBR™/CBR 2™
    TI Connectivity Cable
    Unit-to-Unit link cables

  • Other Materials
    This is Activity 9 from the EXPLORATIONS Book: Math and Science in Motion: Activities for Middle School.
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Measure Up!

Activity Overview

In this activity, students' create a plot showing the heights of some of their classmates. They determine the extreme values and the median for the height data and construct a box-and-whisker plot to summarize the height statistics.

Before the Activity

  • Connect the CBR™ to the calculator using the link cable
  • Run the Ranger program on the calculator
  • See the attached PDF file for detailed instructions for this activity
  • Print pages 39 - 44 from the attached PDF file for your class
  • During the Activity

    Distribute the pages to your class.

    Follow the Activity procedures:

  • Prepare the CBR for data collection
  • Detach the CBR from the calculator and hold it with the detector pointing toward the ground, 0.5 meter above the head of the tallest student
  • A group of students walk beneath the CBR one at a time, as the CBR records motion data
  • Collect data and re-attach the CBR to the calculator
  • Examine the distance values in the graph and record the peak y-values
  • Find the median, lower quartile and upper quartile values
  • Construct a box-and-whisker plot and summarize the data
  • After the Activity

    Students' will collect data, analyze the results, and answer questions under the "Looking at the Results" section.

    Review student results

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