1. Homework on desks Open Learning Logs Place date on Left…Section 5 – 1 on right

2. WARM UP 5 – 1 1.What is the opposite of warm? 2.What is the opposite of inside? 3.What is the opposite of raining? 4.How do these questions apply to addition and subtraction? 5.Name 2 other operation pairs that work this way.

3. Chapter 5 Unit Question How do we solve applications of equations in algebra?

4. Section 1 How do we estimate square roots?

5. No Excuses for Tomorrow

6. Homework Clicky Box

7. Square of the Square Root Property: Examples: √9 √9 = 9 √15 √15 = 15 √3x √3x = 3x For any non-negative number n… = n

8. The square root table! = = = = = = = = = = = = = = = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

9. Using square roots to solve… x 2 = 9 Think, what number times itself is 9? Solve with square roots!!! x = 3 and -3 x = ± 3 x = and

10. Using square roots to estimate… x 2 = 52 Use the square root chart and estimate!!! x ≈ 7.2 and - 7.2 x ≈ ± 7.2 x = and Step 1: Between what square roots is the square root of 52? Between the square root 49 and the square root 64 Which means between 7 and 8 Step 2: Which is 52 closer to, 49 or 64? Step 3:A lot closer or a little closer?

11. Operations with square roots… 11 ESTIMATE! 8.6

12. Word problem stuff!!! Find the AREA of a SQUARE with sides 5 cm long Find the LENGTH of a SIDE of a SQUARE whose AREA is 36 cm 2 Estimate the LENGTH of a SIDE of a SQUARE whose AREA is 7 cm 2 Find the AREA of a SQUARE with SIDES cm long

13. Homework Do HoffmaSheet 5 – 1