In this video lesson, students examine tables and explain whether the relationships represented are proportional, not proportional, or possibly proportional. Students should be comfortable using the terms “proportional relationship,” "is proportional to," and “constant of proportionality.” As students look at data from a context and reason about whether it makes sense quantitatively for the data to represent a proportional relationship, they are engaging in making viable arguments (MP3).

Grade 7, Episode 3: Unit 2, Lesson 7 | Illustrative Math