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2. Lesson Menu Five-Minute Check (over Lesson 12–4) Main Idea and Vocabulary Example 1:Number Line Example 2:Opposites Example 3:Opposites

3. Main Idea/Vocabulary I will use integers to represent real-life situations and graph them on a number line. positive number negative number integer negative integers positive integers opposite integers

4. Example 1 Number Line Mark earned $6 by cutting a lawn. He spent $6 downloading some music. Use integers to represent these situations. Then graph the integers on a number line. Mark earned $6: + 6 or 6Mark spent $6: –6.

5. 1.A 2.B 3.C 4.D Example 1 A.+10, +10 B.–10, –10 C.–10, +10 D.0, 0 Thursday the temperature was 10 degrees below zero. Friday the temperature was 10 degrees above zero. Which show the integers that represent these situations?

6. Example 2 Opposites The Grand Canyon is about 1,600 meters deep. Write an integer to represent this situation. Then write its opposite. 1,600 meters deep: –1,600 Answer: So, –1,600 represents this situation. The integer +1,600 or 1,600 is its opposite. The opposite of –1,600 is +1,600 or 1,600.

7. 1.A 2.B 3.C 4.D Example 2 A.7 m deep: +7; opposite: –7 B.7 m deep: –7; opposite: +7 C.7 m deep: +0; opposite: –0 D.7 m deep: +3; opposite: –3 The pool in the back yard is 7 meters deep. Which integer represents this situation? What is its opposite?

8. Example 3 Opposites Kavita wrote a check for $48 to pay for some new sneakers. Write an integer to represent this situation. Then write its opposite. wrote a check for $48: –48 Answer: So, –48 represents this situation. The integer +48 or 48 is its opposite. The opposite of –48 is +48 or 48. It represents paying $48 for the sneakers.

9. 1.A 2.B 3.C 4.D Example 3 A.received $34: +34; opposite: +34 B.received $34: +34; opposite: 0 C.received $34: –34; opposite: +34 D.received $34: +34; opposite: –34 Terrance is selling his jacket and received $34 for it. Write an integer and its opposite to represent this situation.

10. End of the Lesson End Lesson

11. Resources Five-Minute Check (over Lesson 12–4) Image Bank Math Tool Chest Metric Rulers

12. 1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 12–4) A.2.5 B.3.5 C.4.5 D.5 Complete. 4,500 mL = L

13. 1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 12–4) A.2,000 B.3,000 C.4,000 D.5,000 Complete. 3 L = mL

14. 1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 12–4) A.0.345 B.0.344 C.1.23 D.1.244 Complete. 344 mL = L

15. 1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 12–4) A.400 B.500 C.600 D.700 Complete. 0.6 L = mL

16. 1.A 2.B 3.C 4.D Five Minute Check 5 (over Lesson 12–4) A.22 B.44 C.66 D.105 Complete. 44,000 mL = L

17. 1.A 2.B 3.C 4.D Five Minute Check 6 (over Lesson 12–4) A.1,750 B.2,500 C.5,000 D.5,050 Complete. 2.5 L = mL

18. End of Custom Shows