This document reviews the order of operations and encourages students to practice using their calculators. It defines exponents first, then lists the standard order of operations as 1) parentheses, 2) exponents, 3) multiplication and division from left to right, 4) addition and subtraction from left to right. Students are reminded to use parentheses on their calculators the same way they are used in written equations.

1. Order of Operations 06/04/09 PH 1-3 Bitsy Griffin

2. Review lesson This lesson is one that you’ve had before and that you should be comfortable with. We are spending time with it so that you can become comfortable with your calculators AND using them for order of operations. After this lesson, I’ll expect you to be able to do order of operations with and without your calculators. 06/04/09 PH 1-3 Bitsy Griffin

3. Define: Exponent Evaluate 06/04/09 PH 1-3 Bitsy Griffin

4. Order of Operations 1 st Parenthesis or other grouping symbols Work from the inside out 2 nd Exponents 06/04/09 PH 1-3 Bitsy Griffin

5. Order of Operations 3 rd Multiply & Divide Move from left to right 4 th Add & subtract Move from left to right 06/04/09 PH 1-3 Bitsy Griffin

6. Caution! Use ( ) on your calculator freely! Use () for all types of brackets you see on paper – {} & []. 06/04/09 PH 1-3 Bitsy Griffin

7. Review What do you do 1 st ? 2 nd ? 3 rd ? 4 th ? 06/04/09 PH 1-3 Bitsy Griffin