I include Warm ups with a Rubric as part of my daily routine. My goal is to allow students to work on Math Practice 3 each day. Grouping students into homogeneous pairs provides an opportunity for appropriately differentiated math conversations. The Video Narrative explains this lesson’s Warm Up- Tortoise and Hare Project Day 2 which asks students to write a scenario to match a function.
This is the second day of the five day project. In the last lesson, the students built functions to model the rematch between the tortoise and the hare, and then used the functions to find important information about the race.
I have student pairs join with a neighboring group to compare their answers. For any discrepancies, the students will review their work and decide upon the correct response (Math Practice 3). Once they have had a couple of minutes, we discuss any unresolved problems as a class.
Students now graph the scenario on a coordinate plane. I provide the following information:
Graph all of the equations on the same coordinate plane, with a domain of 0 ≤ t ≤ 650 seconds, and a range of 0 ≤ d ≤1500 feet. The graph must show all significant data points.
Directions are to use the entire sheet of graph paper and a straight edge. Some students might want to used different colored pens/pencils which can be helpful visually.
I find that is it important to walk around at this point to catch serious mistakes in domain or range early on as the graph is crucial to the final portion of this project. Some students may struggle to graph these equations given size of some of the numbers. I like to remind students that they don’t have to use the slope and y-intercept. All they need is two points. I ask them which points on each equation may be the simplest to graph (Math Practice 2) and hopefully this will lead them to either the intercepts or the point the animals cross the finish line. I do ask that they show each animal's start/finish point, the one minute mark, and where they meet each animal.
Before they can continue to the final portion of this project, they must check their graphs with me. An incorrect graph will affect the students’ ability to write an accurate story.
This portion is the key to the entire project. The students will write a story about the race between the tortoise, hare and rat (Math Practice 4). It must be in chronological order. They have to use the graph to figure out the proper order (Math Practice 6). As it states in the lesson plan from Math Projects Journal, students often want to view the graph as an aerial view of the race rather than a time/distance relationship. One suggestion they give is move a piece of paper across the graph showing the position of each animal at any given second.
We will begin this story during this class period if the students have time and finish it during the next lesson.
I use an exit ticket each day as a quick formative assessment to judge the success of the lesson.
Today's Exit Ticket asks students to evaluate the easiest and hardest portions of this lesson.