1. Splash Screen

2. Five-Minute Check (over Lesson 7–8) Main Idea
Example 1: Problem-Solving Strategy
Lesson Menu

3. I will solve problems by making a graph.
Main Idea/Vocabulary

4. The table shows the number of gallons of lemonade that were needed at the school picnic in recent years. It also shows the temperature the day of the picnic.
This year, the temperature is expected to be 93°F. About how many gallons of lemonade will be needed?
Example 1

5. Understand What facts do you know?
You know the temperature and gallons of lemonade.
What do you need to find?
How much lemonade will be needed if it is 93°F?
Example 1

6. Plan
One way to solve the problem is to graph the ordered pairs on a coordinate grid and look for patterns in the data. Making a graph is like drawing a picture of the data.
Example 1

7. Solve Use your plan to solve the problem.
As the temperature increases, the number of gallons of lemonade increases. Place a dot midway between (91, 36) and (95, 40). The graph shows (93, 38).
Answer: So, about 38 gallons of lemonade should be needed.
Example 1

8. Check
Look back at the table. List the temperatures from least to greatest. When the temperature is between 91°F and 93°F, the gallons of lemonade needed is between 36 and 40. The answer makes sense.
Example 1

9. End of the Lesson
End Lesson

10. Five-Minute Check (over Lesson 7–8) Image Bank Math Tool Chest
Use an Appropriate Graph
Resources

11. (over Lesson 7–8)
Which type of graph would you use to display the data in the table? Write line plot, bar graph, double bar graph, line graph, double line graph, or pictograph. Explain why.
Bar graph; each hour can have its own block, representing the number of newspapers shown.
Line graph; the change in the number sold from hour to hour can be shown.
Circle graph; the percentage of newspapers sold in the morning hours can be shown.
Coordinate graph; the ratio of newspapers sold to hour increments can be shown. A B C D
Five Minute Check 1

12. End of Custom Shows