Analyzing Center and Spread Using Stacked Box Plots Activity
This activity encourages students to analyze center and spread of the number of chocolate chips in 5 different brands of chocolate chip cookies.
Task 1: Observe/Compare
Allow students to make observations about comparing and contrasting the different box plots. Obviously, we want students to comment on similarities and differences of the centers and spreads. The attached hand-out can be used in class if you would like for students to record their observations on paper. Teachers may decide to just have students simply discuss their observation with a partner.
Use the boxplots above that display the chip counts of 5 different brands of cookies to compare the distributions, specifically their centers and spreads. List at least 5 observations.
Task 2: Share
If students were working individully on Task 1, then in Task 2 students should share their observations with a partner. Then add to their list of observations on the hand-out.
Share your observations with a partner.
Task 3: Interpret/Apply
This step should push students to make connections between the box plots and the context of the chocolate chips. Hopefully, students will consider the size of the chips, size of the cookies, and other practical differences that may account for the differences in distributions.
Interpret your observations in the context of chocolate chips and discuss possible explanations for the different distributions.
Task 4: Assessment
Students will make a copy of the google doc and complete the assessment. Students will then share that with you or you can print it for them and make paper copies for them to turn in to you.