The students continue their work from Episode 2 by looking for more distance and time values that will make the red car go the same speed as the blue car.
For use in a classroom, pause the video and ask these questions:
1. [Pause video at 0:39] What are you going to do? How will you know that the combinations of distance and time amounts that you chose work or do not work?
2. [Pause video at 2:29] Compare your table entries with Kate and Christopher’s. What is similar? What is different?
Support students’ ability to attend to the mathematical claims of others by asking them to:
1. Share their responses to Focus Question #2 by contributing both combinations of values for distance and time that worked and those that did not work, so the class can begin to construct a shared table.
2. Contribute one claim at a time to the class table. Then ask the class who else had the same claim. Then ask the students to share another new claim with the class.