On Desk: Pencil/eraser Math Journal HW Tracking Sheet HW from Yesterday

1. Math CC7/8 – Be Prepared On Desk: Pencil/eraser Math Journal HW Tracking Sheet HW from Yesterday In Journal • Date: 9/25 • Title: ATN 4.1 Order of Operations Reminder:ATN Unit Test Mon, Sept 30 HW Tracking Sheet: HW:ATN Order of Operations Worksheet CHECK HW: Blue

2. Warm Up • What do you notice? • What do you wonder? 25 ∙ (-3.12) + 21.3 ÷ 3

3. Tasks for Today • Warm Up • Lesson 4.1 – Order of Operations • Begin HW?

6. Order of Operations How do you remember Order of Operations? - PEMDAS - Please Excuse My Dear Aunt Sally - PEDMA or PEMDA Subtraction does not exist

7. The Stairway to Order of Operations Parentheses Exponents FIRSTchange subtraction to addition Multiply orDivide (whichever comes first in the number sentence) Add (Left to Right) Add orSubtract (whichever comes first in the number sentence)

8. Example Problem - Show your Thinking! 2 · 2 – 6 - (5 – 7) 2 · 2 + (- 6) +(-1)[5 + (-7)] 2· 2 + (- 6)+ (-1)[5 + (- 7)] 2· 2 + (- 6) + (-1) (- 2) 5+ (- 6) + 2 + (- 6)+ 2= -1.5 Change subtraction to addition Check the parenthesis Check Exponents Do Multiplication / Division (L to R) Do Addition (L to R)

10. Group Task Goal: To solve a problem using order of operations and be able to show your thinking accurately and clearly! • Group Task: • Write down problem • Show your thinking! • No divide and conquer – work together

11. C - PEMDA

12. If time, begin…