1. Bell Ringer
Replace each ___ with <, >, or = to make a true statement.
#1.
#2.
Order each group of numbers from least to greatest.
#3.
#4.

2. Homework Check

3. Open Notes Pop Quiz
You need a piece of paper, a pencil, your calculator, and your notes 
You may not talk or use your computer.
When you are finished, turn in to me and quietly work on something for another class or read a book.

4. Square and Square Roots
Section 10.1
Square and Square Roots
R drive > Key > Week 10 > Wednesday> PowerPoint
File > Save As > P drive > Math > Week 10 > PowerPoint

5. Vocabulary Perfect Square – The square of an integer
Square Root – One of the squares two equal factors
Radical Sign – Used to indicate a positive square root,

6. Notes
Every positive number has both a positive and a negative square root.
A negative number like -36 has no real-number square root because the square of a number cannot be negative.

7. Example 1 Find Square Roots

8. Example 2 Find Square Roots
Find each square root. a. b. c. d.

9. Your Turn Find Square Roots

10. Example 3 Estimate Square Roots
You can estimate the square root of an integer that is not a perfect square by determining between which two consecutive integers the square root lies.

11. Example 4 Estimate Square Roots

12. Example 5 Estimate Square Roots
Estimate each square root to the nearest integer.

13. Your Turn Practice Estimating Square Roots

14. Example 6 Use a Calculator to Find a Square Root

15. Example 7 Use a Calculator to Find a Square Root
Use a calculator to find √57 to the nearest tenth.

16. Your Turn Practice Using a Calculator to Find a Square Root

17. Example 8 Use a Calculator to Find a Negative Square Root

18. Example 9 Use a Calculator to Find a Negative Square Root
Use a calculator to find -√42 to the nearest tenth.

19. Your Turn Practice Using a Calculator to Find a Negative Square Root

20. Example 10 Use Square Root to Solve Problems

21. Example 11 Use Square Roots to Solve Problems
The tallest building in Houston, Texas, is the JP Morgan Chase Tower, standing at 1002 feet. About how far to the horizon can a person standing on the top floor see? Round your answer to the nearest tenth. When finding square roots in real-world situations, use the positive square root when a negative answer does not make sense.

22. Your Turn Practice Using Square Roots to Solve Problems
Spring Port Ledge Lighthouse in Maine is approximately 55 feet high. Estimate and then calculate about how far a person who is standing on the observation deck can see on a clear day. Round to the nearest tenth of a mile.

23. Quiz Tomorrow
You will have a Quiz Tomorrow covering 3.1, 3.2, and 10.1.
The topics covered in these sections are:
Fractions and Decimals
Rational Numbers
Squares and Square Roots
There will be no vocabulary on this quiz.
Make sure you know how to solve problems from each section. Use your notes and homework to study for this quiz.

24. Homework Section 10.1 #1-10