The class gets their mean and median all in a row with an assessment task that uses a population of ducklings to work with data displays and measures of central tendency. Pupils create a frequency chart and calculate the mean and median. Individuals then determine the number that will not change the mean when added.

Concepts

frequency, frequency chart, frequency tables, mean, median, ducks, surveys, central tendency

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Additional Tags

math

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Instructional Ideas

• Have class members share and explain how they determine the median and mean using the frequency table
• Provide the class with a bar graph and ask them to determine the mean and median

Classroom Considerations

• Because the task does not compare two populations or does not involve a random sampling, 6.SP.B.5 might be a better Common Core math Standard fit

Pros

• A section guides teachers on the reflection of students' performance on the assessment
• The rubric provides point values for different solutions

Cons

• None

Common Core

7.SP.A.1 7.SP.B.4 MP3 MP5