Unit 2 Contents

Discuss the following questions with your group. Use the data from your graph and Nisha's graph to answer the questions.

4. What was your most common sum? Tell how you know.
5. What is your least common sum? Tell how you know.
6. Where are the tallest bars on your graph? What does it mean when the bars are tall?
7. Where are the shortest bars on your graph? What does it mean when the bars are short?
8. The graph Nisha, Darius, and Carla made has taller bars in the middle. How does your graph compare?
9. Compare your graph to the other graphs in the class. How are they the same? How are they different?
10. Are the most common sums in the same place on all the graphs? What about the least common sums?

As a class, make a chart with all of the possible spins and sums.

11. In what way are your graph and the class chart alike and different?

Check-In: Questions 12–13

12. What would happen if you spun and added 40 more number sentences to your graph? How would it change? How would it look similar? Explain your predictions.
13. Look back at the number sentence chart your class made for the sums 4 through 18. Explain why there are 7 possible number sentences for the sum of 12.