LESSON 4: Identifying Proportional and Non-Proportional Relationships in Tables (again) Dr. Basta1 Example: Which Team Will Win the Race? You have decided.

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Proportional and Non-Proportional Relationships in Tables

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LESSON 4: Identifying Proportional and Non-Proportional Relationships in Tables (again) Dr. Basta1 Example: Which Team Will Win the Race? You have decided to run in a long distance race. There are two teams that you can join. Team A runs at a constant rate of 2.5 miles per hour. Team B runs 4 miles the first hour and then 2 miles per hour after that. Task: Create a table for each team showing the distances that would be run for times of 1, 2, 3, 4, 5 and 6 hours. TEAM ATEAM B Time (hrs)Distance (m)Time (hrs)Distance (m)

Dr. Basta2 LESSON 4: Identifying Proportional and Non-Proportional Relationships in Tables (again) For which team is distance proportional to time? Explain your reasoning. Explain how you know distance for the other team is not proportional to time. If the race were 2.5 miles long, which team would win? Explain If the race were 3.5 miles long, which team would win? Explain. If the race were 4.5 miles long, which team would win? Explain.

Dr. Basta3 For what length race would it be better to be on Team B than Team A? Explain Using this relationship, if the members on the team ran for 10 hours, how far would each member run on each team? Will there always be a winning team, no matter what the length of the course? Why or why not? If the race is 12 miles long, which team should you choose to be on if you wish to win? Why would you choose this team? How much sooner would you finish on that team compared to the other team? LESSON 4: Identifying Proportional and Non-Proportional Relationships in Tables (again)

Dr. Basta4 Joseph earns $15 for every lawn he mows. Is the amount of money he earns proportional to the number of lawns he mows? Make a table to help you identify the type of relationship. At the end of the summer, Caitlin had saved $120 from her summer job. This was her initial deposit into a new savings account at the bank. As the school year starts, Caitlin is going to deposit another $5 each week from her allowance. Is her account balance proportional to the number of weeks of deposits? Use the table below. Explain your reasoning. LESSON 4: Identifying Proportional and Non-Proportional Relationships in Tables (again)

Dr. Basta5 Pages Brianna Read Time (hours)6412 Pages Lucas Read Time (hours)869 Lucas and Brianna read three books each last month. The table shows the number of pages in each book and the length of time it took to read the entire book. LESSON 4: Identifying Proportional and Non-Proportional Relationships in Tables (again) How many observations can you make about any similarities or difference that exist between the reading rates of the two students. Both Lucas and Brianna had specific reading goals they needed to accomplish. What different strategies did each person employ in reaching those goals?