# Activities

• • • ##### Subject Area

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

• ##### Author K-5

60 Minutes

• ##### Device
• TI-73 Explorer™
• ##### Other Materials
This is Activity 6 from the EXPLORATIONS Book:
Integrating Handheld Technology into the Elementary Mathematics Classroom .

Data Analysis

#### Activity Overview

Students learn to design data investigations, describe data, and draw conclusions. They learn to choose the best type of graph, graph and interpret the data, and look for patterns and trends. They also use the calculator to investigate and communicate results.

#### Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print pages 63 - 83 from the attached PDF file
• #### During the Activity

Distribute the pages to the class.

Activity 1: Can You Improve Your Record?

• Select a physical activity (bouncing a ball, hitting a target) that can be counted and recorded to measure performance
• Gather data over a period of 5 days with 7 trials per day
• Tabulate and analyze the performance scores, look for patterns of improvement, and graph the data on paper and on the calculator
• Explore the different forms in which the trials can be graphed on the calculator (pictograph, bar graph, Box and Whisker plot)
• Examine the mean, mode, median, and average values
• Examine the data numerically and visually to interpret data and draw conclusions

Activity 2: The Timed Walk
• Select a distance and have students walk back and forth in exactly 30 seconds
• Conduct 7 trials per student and collect data
• Record the time taken and note the deviation from the goal of 30 seconds
• Plot the total trial data for each student and the difference of each trial from the goal of 30 seconds for all the 7 trials
• Understand the meaning of the graph and learn to relate it to the speed, distance, and time of the walk

• Activity 3: How Many Pages
• Use a book with more than 100 pages and pick a number
• Open the book as close as possible to the page corresponding to the number chosen
• Record the number of pages they are away from the given number
• Conduct 7 trials and observe patterns in the data
• Predict the result of the next 7 trials and make a list of data of first trials and the predicted trials
• Graph both data side by side and compare results

• Assess the student's ability to collect, analyze, graph, and interpret data
• #### After the Activity

Review students results and re-teach concepts as necessary.