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This Means from Frequency Tables instructional video also includes:
Shorten the calculations with the power of multiplication. Using the meaning of multiplication, the video shows a more efficient method of calculating the mean for data displayed in a frequency table. There is no need to write out each data point; simply multiply the frequency by the value to get the total. Be sure to get the total number of data points by adding up the frequencies.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Brainstorm ways to determine the mean from a frequency table before showing the video
Classroom Considerations
- The class should know how to calculate the mean of a data list
- Textbook exercises contain practice for means along with median, mode, and range
Pros
- Performs arithmetic with a calculator so as not to take away from the task
- Includes a third column as a place to record the products
Cons
- None