## Reflection: Staircase of Complexity Analyze this! Mean Median Mode and Range - Section 3: Closure

We have been trying very hard to make sense of the measures of central tendency so when it came to figuring out a data set that had the same mean, median, and mode, I was quite interested in hearing what they had to say.  My goal was to get the students to understand that the mean means:  if all of the data were to be the same, then the numerical value found would be that number.  I wanted them to know that the median meant that 50% of the data would fall the left of the median and 50% to the right of the median.  The mode means that it is the data value to occur the most.  With that said, the students had to use chips to show me this understanding and then come up with a data set that had all 3 measures the same.  Once I got them to find some, we put those values on the board.  I had them look at the numbers and try to find patterns.  Then I told them to look deeper to see if they could make a generalization about all of the patterns.  Watch this video to see what they said.

Staircase of Complexity: Implementing practice 7 and 8

# Analyze this! Mean Median Mode and Range

Unit 9: Statistics
Lesson 4 of 23

## Big Idea: Finding measures of central tendency will be applied to the different graphs throughout this unit

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