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Academic standards correlations on Teachers' Domain use the Achievement Standards Network (ASN) database of state and national standards, provided to NSDL projects courtesy of JES & Co.
We assign reference terms to each statement within a standards document and to each media resource, and correlations are based upon matches of these terms for a given grade band. If a particular standards document of interest to you is not displayed yet, it most likely has not yet been processed by ASN or by Teachers' Domain. We will be adding social studies and arts correlations over the coming year, and also will be increasing the specificity of alignment.
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.
Average Practice Time QuickTime Video
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.
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.