Here are some Frame, Focus and Follow-up suggestions for using this video in a math lesson.
What is Frame, Focus and Follow-up?
Frame: When you run a race, how do you make sure it is fair for all the participants? Many races are run on tracks. Why do you think most tracks have a curved, oval-like shape? If you were running on an oval, would you want to be in the lane closest to the center or farthest away, or in one of the lanes in the middle? Why?
Focus: Bianca measures two of the lanes on the track that she is about to run on. Does she find that the distances are equal? How can that be when she is starting so much further back?
Follow Up: What measuring tools did Bianca use to determine if the two lanes were equal in distance? What shape was the track? Would it have been different if the race was on a straight course instead of a curved track?