1. Splash Screen

2. Lesson Menu Five-Minute Check (over Lesson 12–6) Main Idea Example 1:Problem-Solving Investigation

3. Main Idea/Vocabulary I will choose the best strategy to solve a problem.

4. Example 1 ARIANA: I checked the temperature this morning, and according to the thermometer, it was –3°F. This afternoon, the temperature was 7°F. I know it got warmer outside, but by how much? YOUR MISSION: Find the change in temperature.

5. Example 1 Understand What facts do you know? What do you need to find? You need to find how many degrees the temperature increased. The morning temperature was –3°F. The afternoon temperature was 7°F.

6. Example 1 Plan You can use a model such as a number line to find the change in temperature. Graph the morning and afternoon temperatures on the number line and find the distance between them.

7. Example 1 Solve Draw a number line that includes –3 and 7. Answer: Since the distance between –3 and 7 is 10, the temperature rose 10° from the morning to the afternoon.

8. Example 1 Check The increase in temperature from –3°F to 0°F is 3 degrees. The increase in temperature from 0°F to 7°F is 7 degrees. Since 3 + 7 = 10, the answer is reasonable.

9. End of the Lesson End Lesson

10. Resources Five-Minute Check (over Lesson 12–6) Image Bank Math Tool Chest Metric Rulers

11. 1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 12–6) A.+7 B.–7 C.+6 D.–6 Find the change in temperature. Use an integer to represent the change. 13°C to 6°C

12. 1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 12–6) A.–19 B.+19 C.–22 D.+22 Find the change in temperature. Use an integer to represent the change. 65°F to 87°F

13. 1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 12–6) A.+10 B.–10 C.+20 D.–20 Find the change in temperature. Use an integer to represent the change. 42°C to 52°C

14. 1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 12–6) A.–16 B.+16 C.–18 D.+18 Find the change in temperature. Use an integer to represent the change. 90°F to 72°F

15. 1.A 2.B 3.C 4.D Five Minute Check 5 (over Lesson 12–6) A.+32 B.–32 C.+35 D.–35 Find the change in temperature. Use an integer to represent the change. 85°F to 117°F

16. End of Custom Shows