Page 187 - IM_Grade 8_FL Print Sample.pdf

3.2 Activity Prep
Card 6 of 26
Teaching notes
Let’s investigate points in scatter plots.
In this activity, you'll work by yourself.
First, you'll have 5-7 minutes to work on the problems. Then, we'll discuss our responses as a class.
Pacing: 15 minutes for entire activity
This entire activity spans 7 cards. This is card 1 of 7. Activity narrative
The analysis of scatter plots continues with data about the mass of automobiles and their fuel e ciency. Again, students connect points in the scatter plot with rows of data in a table, but now there is a third column
that gives a name to each pair.
After picking out information about points in the scatter plot and table, students make their rst foray into thinking about how scatter plots can help them make predictions.
Speci cally, when looking at two particular points in the scatter plot, students are asked if the results are surprising given the overall trend of the data.
In later lessons, students develop more sophisticated tools for answering questions like this (speci cally, by tting lines to the data), so a heuristic discussion is all that is expected at this point.
It is recommended that students have a copy of the student-facing task handout (see the Additional Materials section of this lesson) in order to complete this activity.
About the digital applet:
A digital applet appears in this activity and is also available in an assignable version found in the Additional Materials.
Are you ready for more?
An extension problem is available for this activity.
Find the problem in the Additional Materials section of this lesson.