1. Name:________________________________________________________________________________Date:_____/_____/__________ 1)_____Which of the following statements is false ? A. | 15 | = -15 C. | - 2 / 5 | = 2 / 5 B. 8 = | 8 |D. 2.6 = | -2.6 | 2) ___ Only one of the following calculations gives you a different result from the others. Which is it? A. 13 - 25 C. -13 + 25 B. 25 – 13 D. 25 + (-13) 3) _____ During a winter’s night in Shrek’s swamp, the temperature was 10°F. The wind-chill temperature that same night was -7°F (the swamp was definitely iced over). What was the difference between the actual temperature and the wind-chill temperature? A. -3°FC. 17°F B. 3°FD. -17°F 4) _____ Which of the following is equivalent to the given expression: 4 - 10 A. 4 + (-10) C. 10 + (-4) B. 10 + 4D. 10 – 4 Life is always POSITIVE outside of jail. KCC! SHOW YOUR WORK! KCC !

2. Evaluate: 3 (2 3 x 5 ÷ 4) - 2 ORDER OF OPERATIONS CHALLENGE: NOW WITH Negative integers… 28 Evaluate: -4 – (-15 + 3 2 ) ÷ (-2) -7

3. PROPERTY PREVIEW

4. 1.Begin Properties Foldable 2.Practice the Following Properties: IDENTITY PROPERTY Of Addition & MULTIPLICATION AKA Additive Identity Property and Multiplicative Identity Property 1.Begin Properties Foldable 2.Practice the Following Properties: IDENTITY PROPERTY Of Addition & MULTIPLICATION AKA Additive Identity Property and Multiplicative Identity Property Today We will:

5. Add ______ OR Multiply by _____ Just remember you can secure your identity if you: Nobody wants to lose their identity! Identity Property: ZERO ONE The answer STAYS the SAME!

6. Name:________________________________________________________________________________Date:_____/_____/__________ Evaluate: 1) 2 + 5 x 4 = _____ You will solve the following problems as the video presents them. Please do NOT work ahead! Let’s get started... Now, let’s watch the video! Video ReviewVideo Review 10 x (4 + 5)(5 - 3) + (6 x 2)3 x 5 2 (3 2 + 4) + 620 – 10 ÷ 540 ÷ 4 x 5 Do not move on yet...

7. What: Order of Operations Why: To evaluate numerical expressions (containing integers) using the Order of Operations. What: Order of Operations Why: To evaluate numerical expressions (containing integers) using the Order of Operations. Today’s Lesson:

8. P D M E S A P (Parentheses) E (Exponents) M and D (Multiplication and Division left to right ) A and S (Addition and Subtraction left to right) arentheses xponents ultiplication ivision ddition ubtraction “Please Excuse My Dear Aunt Sally!”

9. Don’t forget the Integer Rules! ADDITION: SUBTRACTION: 1. _______, Change, ________ 2. Follow ADDITION Rules MULTIPLICATION/DIVISION: ADD Keep Change Absolute Value POSITIVE NEGATIVE

10. 1) (3 + 4) 2 2) (3 + 4²) Guided Practice: 49 19 What is the difference between #1 and #2?? The location of the exponent!

11. 3) - 5 2 + (-20)4) (-5) 2 + (-20 ) What is the difference between #3 and #4?? -45 5 The parenthesis around the “-5.”

12. You try!! Here are some examples : A) (-2) 2 B) -2 2 C) - (2) 2 = 4 = -4

13. Example: 14 ÷ (-2) + (4 – 6) 3 14 ÷ (-2) + _____ 3 14 ÷ (-2) + _____ _____ + -8 (-2 ) -8 -7 -15

14. 5) 9 – 12 ÷ 2 + (3 – 8) -2

15. Notice the absolute value bars! 14

16. 7) -15 – (-10) ÷ -2 -20

17. 8) 2 (2 + 3) 2 - 8 42

18. IXL HOmework DON’T FORGET TO LOG IN! (You won’t receive credit for doing your homework if you are not logged in!) Seventh Grade - C.9 Algebra 1 – B.2 https:// www.ixl.com/signin/jlsms CLICK on MATH CLICK on 7 th GRADE CLICK on the skill(s) assigned for homework EARN a Smart Score of 70 & work for at least 10 minutes! EARN a Smart Score of 70 on the assigned skill(s), then you are done! (Spend at least 10 minutes practicing.) TO LOG IN: CLICK on the IXL button on the Simpson Home Page (left side) Username: given to you by your teacher (Usually your initial of first name, and full last name) Password: math7

19. END OF LESSON The next slides are student copies of the notes for this lesson. These notes were handed out in class and filled-in as the lesson progressed.

20. P (Parentheses) E (Exponents) M and D (Multiplication and Division left to right) A and S (Addition and Subtraction left to right) Math-7 NOTES DATE: ______/_______/_______ What: “Order of operations” Why: To evaluate numerical expressions using the Order of Operations. What: “Order of operations” Why: To evaluate numerical expressions using the Order of Operations. NAME: A COUPLE OF NOTES ABOUT PARENTHESIS & EXPONENTS… What is the difference between #1 and #2??__________________________ 1) (3 + 4) 2 2) (3 + 4²) First: Next: Then: Last: D M S A P E Don’t forget the Integer Rules! ADDITION: SUBTRACTION: 1. __________, Change, ___________ 2. Follow ADDITION Rules MULTIPLICATION/DIVISION:

21. 5) 9 – 12 ÷ 2 + (3 – 8) 7) -15 – (-10) ÷ -28) 2 (2 + 3) 2 - 8 Notice the absolute value bars! 14 ÷ (-2) + (4 – 6) 3 14 ÷ (-2) + _____ 3 14 ÷ (-2) + ____ ____ + -8 IXL: Alg.1 B.2 What is the difference between #3 and #4??__________________ ________ 3) - 5 2 + (-20)4) (-5) 2 + (-20 ) You try!! Here are some examples like the above: A) (-2) 2 B) -2 2 C) - (2) 2

22. Math-7 Extra Practice NAME:______________________________________________________________________________ DATE: _____/_____/__________ “Order of Operations” Evaluate the following using the Order of Operations: 1)2) 3)4) For each of the following, CIRCLE the part of the problem that should be performed first:

23. 7)8) 5)6) 9) The following two students solved the same problem. One is correct and one is wrong. Please choose the correct student: Jack: 12 – 8 ÷ 2 + (-4) (-2) 12 – 4 + (-4) (-2) 12 – 4 + 8 8 + 8 16 Jill: 12 – 8 ÷ 2 + (-4) (-2) 4 ÷ 2 + (-4) (-2) 2 + (-4) (-2) -2 (-2) 4 10)Why was the other student wrong? Please identify the specific mistakes that were made (more than one):

24. Math-7 classwork NAME:______________________________________________________________________________ DATE: _____/_____/__________ “Order of Operations” Evaluate the following using the Order of Operations: 1)2) 3)4) 5)6) 7)The following two students solved the same problem. One is correct and one is wrong. Please choose the correct student: Billy: -10 + 8 ÷ (-2) + (14 – 2 2 ) -10 + 8 ÷ (-2) + 10 -2 ÷ (-2) + 10 1 + 10 11 Bob: -10 + 8 ÷ (-2) + (14 – 2 2 ) -10 + 8 ÷ (-2) + 10 -10 + -4 + 10 -14 + 10 -4 8)Why was the other student wrong? Please identify the specific mistakes that were made: To be used with warm up on Day 2.