The document discusses order of operations and provides examples of how the order matters when evaluating mathematical expressions. It includes sections on order of operations from sections 2.2 and 2.3, examples of expressions with different meanings depending on punctuation, homework assignments watching Khan Academy videos and practice problems from the textbook and online platform.

1. Order of Operations
Sections 2.2 and 2.3

2. Does Order Matter?
2315 
36 21

3. Does Order Matter?
 Let’s eat, Grandma
 Let’s eat Grandma

4. Homework Slide 1
Order Of Operations Video
Watch the two videos and copy the examples in
your notes:
http://www.youtube.com/watch?v=g4pdQRIafCY
http://www.youtube.com/watch?v=dAgfnK528RA

5. Be Careful with Exponents!
22
6)6( 

6. Group Work
 How It Works page 97# 6, 7, 8, 9, 10
 Discover page 102 #3
 Remember to use complete sentences on
questions that ask you to explain results.

7. Homework
 Text book page 99 #1-5
 My Math Lab questions for Section 2.2
 Text book page 103 #1-8
 My Math Lab questions for Section 2.3