Reflection: Developing a Conceptual Understanding Mean - Section 3: Mean


First I required each group to create Data Set A using blocks.  Next I asked students to level out the blocks between the stacks.  Most students moved blocks from the higher stacks to the lower stacks until they had five stacks of four blocks.  As I walked around I asked groups to explain their answer.

A couple groups created four stacks of five blocks.  I had them return to Data Set A in the table.  I asked them how many people were in the data set.  They responded that there were 5 people in the data set.  I asked them, “Then why are there only 4 values in your data set?”  They realized that their answer didn’t work and worked to remedy it.  

  Developing a Conceptual Understanding: The Mean as a "leveling" process
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Unit 9: Statistics
Lesson 10 of 22

Objective: SWBAT: • Define and identify the mode, mean, median, and range of a data set. • Create values in a data set that will have a particular mean. • Compare data sets and make observations.

Big Idea: What does the mean mean? Students work with blocks to understand that the mean is a number that evens out a distribution.

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Math, Statistics, mean, 6th grade, master teacher project
  50 minutes
unit 8 10 image 2
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