In this video lesson, students’ focus becomes more holistic and they begin to see a set of data points as a single thing that can be analyzed, not just a bunch of disconnected points. Students see that sometimes we can model the relationship between two variables with a line (MP4), although they continue to analyze the connections between the scatter plot and the line by comparing individual points. As they see these connections, students begin to see the structure of the scatter plot (MP7) and to use that structure to reason abstractly and quantitatively (MP2).

Grade 8, Episode 13: Unit 6, Lesson 4 | Illustrative Math