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# Day 8 one step equations

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### Transcript

1. AIM: Solving One-Step Equations Do Now 1.) Evaluate the following: 3 -5 + 3 + (-8) 2.) Evaluate the following: (-2 • 3 + 4)2 ÷ (- 2) 1
2. Homework: Pages 152-153 #32-43 all 2
3. Anticipatory Set Solve the following equation. SHOW YOUR CHECK! -2(x + 6) - 12x -2 = 8x - 10(x - 1) How do you solve equations? 3
4. Anticipatory Set 1.) How would the scale change if I add another 5 gram mass to one side? 2.) Describe how to balance the scale again? 3.) How is this similar to solving equations? 4
5. Add or Subtract the following. a.) -6 b.) -10 c.) -4 + 10 -5 - (-10) 5
6. Think-Pair-Share Activity: Use any method to solve the following equations. A.) x + 13 = 5 CHECK B.) x - 17 = 50 CHECK C.) Explain, in a complete sentence, how we solved those equations. 6
7. Think-Pair-Share Activity: Use any method to solve the following equations. A.) x + 13 = 5 CHECK B.) x - 17 = 50 CHECK -13 -13 C.) Explain, in a complete sentence, how we solved those equations. 7
8. Think-Pair-Share Activity: Use any method to solve the following equations. A.) x + 13 = 5 CHECK B.) x - 17 = 50 CHECK -13 -13 x = -8 C.) Explain, in a complete sentence, how we solved those equations. 8
9. Think-Pair-Share Activity: Use any method to solve the following equations. A.) x + 13 = 5 CHECK B.) x - 17 = 50 CHECK -13 -13 + 17 +17 x = -8 C.) Explain, in a complete sentence, how we solved those equations. 9
10. Think-Pair-Share Activity: Use any method to solve the following equations. A.) x + 13 = 5 CHECK B.) x - 17 = 50 CHECK -13 -13 + 17 +17 x = -8 x = 67 C.) Explain, in a complete sentence, how we solved those equations. 10
11. L.) CHECK M.) CHECK 11
12. L.) CHECK M.) CHECK 12
13. L.) CHECK M.) CHECK 13
14. J.) 4x = 240 CHECK K.) -7r = -84 CHECK 14
15. J.) 4x = 240 CHECK K.) -7r = -84 CHECK 4 4 15
16. J.) 4x = 240 CHECK K.) -7r = -84 CHECK 4 4 x = 60 16
17. Think-Pair-Square-Present Activity: 1.) Complete problem and check individually. 2.) Discuss with your partner until agreement. 3.) Discuss with your group until agreement. 4.) A partnership will be called at random to present the problem on the board. A.) -5 = x + 16 CHECK B.) -9x = -81 CHECK 17
18. C.) y - (-8) = -10 CHECK x D.) = -8 CHECK 7 18
19. E.) -60 = x - 17 CHECK x F.) 10 = CHECK -6 19
20. G.) x + (-129) = 50 CHECK H.) 52 = -2x CHECK 20
21. Write and solve equations for the following word problems. I.) The temperature in Minnesota was -8°F one day. This was 12 degrees less than the temperature in Indiana on the same day. What was the temperature in Indiana? CHECK J.) The temperature in Buffalo, New York, was -2°F one day. This was 42 degrees warmer than the temperature in Nome, Alaska, on the same day. What was the temperature in Nome? CHECK 21
22. Extra Practice More Extra Practice Even More Extra Practice Past Even More Extra Practice Way Past Even More Extra Practice 22
23. Before You Leave Last year you learned how to solve equations. What did you learn today that goes past what you did last year? What did I learn today 23
24. Mr. Tjersland's Math 7 Homework: Homework Sheet 24