Day 3 subtracting integers
- 1. AIM: Subtracting Integers Do Now Weekly Quiz #1 1
- 2. Anticipatory Set Answer the following question in a complete sentence. 1.) Predict how subtracting integers using a number line will be different than adding integers using a number line. 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 2
- 3. SUBTRACTING INTEGERS USING A NUMBER LINE: 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Pairs Check Activity: -1 - 5 4 - 10 STOP: WAIT FOR THE OTHER PAIR TO FINISH AND DISCUSS. DO NOT CONTINUE UNTIL INSTRUCTED TO!!!!! 3
- 4. SUBTRACTING INTEGERS USING A NUMBER LINE: 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Pairs Check Activity: 3-9 -4 - 8 STOP: WAIT FOR THE OTHER PAIR TO FINISH AND DISCUSS. DO NOT CONTINUE UNTIL INSTRUCTED TO!!!!! 4
- 5. SUBTRACTING INTEGERS USING A NUMBER LINE: 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Pairs Check Activity: -9 - (-12) 2 - (-10) STOP: WAIT FOR THE OTHER PAIR TO FINISH AND DISCUSS. DO NOT CONTINUE UNTIL INSTRUCTED TO!!!!! 5
- 6. Evaluate the expression x - y for each set of values. 1.) x = 14, y = -2 2.) x = -11, y = 11 3.) x = -8, y = -15 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 6
- 7. 4.) The temperature changed from 5°F at 6 P.M. to -2°F at midnight. What is the difference in the two temperatures? 7
- 8. 5.) The high temperature one day was -1°F. The low temperature was -5° F.What was the difference between the high and low temperatures for the day? 8
- 9. 9.) The low point of the Tonga Trench, in the Pacific Ocean, is -10,630 meters. The low point of the Mariana Trench, also in the Pacific Ocean, is 890 meters lower. What is the depth of the Mariana Trench? 9
- 10. Extra Practice 10
- 11. Extra Practice 1.) -9 - 1 5.) -10 - (-15) 2.) 8 - (-9) 6.) 5 - 18 3.) -7 - (-3) 7.) -8 - 4 4.) 5 - 11 8.) 8 - (-7) 11
- 12. Subtracting Integers Grade: «grade» Subject: «subject» Date: «date» 12
- 13. 1 1.) -9 - 1 13
- 14. 2 2.) 8 - (-9) 14
- 15. 3 3.) -7 - (-3) 15
- 16. 4 4.) 5 - 11 16
- 17. 5 5.) -10 - (-15) 17
- 18. 6 6.) 5 - 18 18
- 19. 7 7.) -8 - 4 19
- 20. 8 8.) 8 - (-7) 20
- 21. BEFORE YOU LEAVE Trade-A-Problem: Create a word problem using temperatures similar to questions 4-7. Then you will trade with your partner and solve their problem. 21
- 22. Mr. Tjersland's Math 7 Castle Homework due Tuesday 9/20/11 22
- 23. AIM: Subtracting Integers 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 -1 - 5 4 - 10 23
- 24. 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 -9 - (-12) 2 - (-10) 24
- 25. Attachments Class Notes 11806.doc Class Notes 11905.doc Math in the News Project Outline.doc