Skip to main content

Lesson

9th Grade Math – Using Functions

Clip 11/18: Lesson Part 2B

Overview Download Transcript (PDF)

Using large chart paper, students begin 10 minutes of work with their table partners to develop the best commentary of the race. Students ask each other, “How should we label it?” Lisa Hennefarth circulates among the pairs of students, posing questions such as “Are you going to do anything with time? Or distance?” Another student summarizes the sequence of who is winning at different points, and Lisa asks, “Do you think you want to talk about lead changes?” She asks a pair, “What was on his whiteboard that you didn’t have, and what was on yours that he didn’t have?” A three students collaborate in writing “12 seconds in, Rebecca takes the lead at 25 yards” and “Genelle pacing herself in last place.” Lisa works with a student who correctly identifies who wins the race, and Lisa prompts her to consider what the intersections on the graph represent. Groups continue writing their commentaries as Lisa moves around the room, observing their work and inviting some groups to come up and share after group work is done.

Teacher Commentary

Lisa Hennefarth

In order to show them that they could do this “out of the box” thinking, to stretch their knowledge, they’re working with three things going on in the graph, three racers. I wondered, “How are they going to even know what a swimming race looks like? That was why I started the lesson the way I did, to even the playing field.

Materials & Artifacts