Teachers' Domain is moving soon to its new and improved home — PBS LearningMedia!          Learn More

Finding Averages as Means

Lesson Plan for Grades 4-7
  • SAVE TO FOLDER
  • Share |

Resource Produced by:

WNET

Collection Developed by:

WNET

Collection Credits

Collection Funded by:

U.S. Department of Education

Funding for the VITAL/Ready to Teach collection was secured through the United States Department of Education under the Ready to Teach Program.

Resources for this Lesson:

Save this lesson plan as a folder


open Connections

Everyday Math (2004)
Teacher Lesson Guide: pp. 298-300, 462, 920
Teacher Reference Manual: pp. 142, 152, 215
Student Reference Book: pp. 69, 372
Printer Friendly Version of Connections Print Connections

open Standards

 
to:

Loading Content Loading Standards

open Comments and Reviews

Not yet reviewed.

Overview

In this activity students explore the concept of "the mean" as they examine and compare scores for various sports events. First, they look at two baseball teams, and then they will watch a video clip that takes a look at computing the average practice time of two figure skaters.

Grade Level:

4-7

Suggested Time

1 hour

Media Resources

Average Practice Time QuickTime Video

Materials

Handout: Measures of Central Tendency
Assessment: Level A
Assessment: Level B
Answer Key

The Lesson

Part I: Learning Activity

1. Read the following to the students: In statistics we often use the term average, or mean, to describe an athlete's performance. Identify some averages you have encountered in your own sports activities or in watching sports games.

2. Share students responses and ask them how they would define the term "average."

3. Distribute the Handout: Measures of Central Tendency . Note to teacher: The video emphasizes only the procedure for calculating the mean. The handout is designed to emphasize that the mean is the fair share measure of center.

4. Review Handout, and students' responses with the class.

5. Read the following to the students: You will watch a video of figure skaters Tai Babilonia and Randy Gardner. They discuss how much they practice on average per day. Record the data for Tai and Randy's practice times for one week.

6. Play the Average Practice Time QuickTime Video and stop it after it shows the practice times from Monday to Friday. Give the students time to calculate the range and the mean.

7. Play the rest of the video clip. Then ask the students to check their answers and discuss their methods.

Part II: Assessment

Assessment: Level A (proficiency): Students practice calculating averages. 

Assessment: Level B (above proficiency): Students extend their knowledge of finding averages. They are first asked to compose a set of data with a specified average, and then asked to determine what score they would need to achieve on a final test in order to get a 90 average for a class.