1. Get ready before the bell rings! Take out homework and a pencil to prepare for the homework quiz! Check the file folder for your class to pick up graded work  Located by the bookshelf, blue crate.  Look behind the tab for your class period and take home anything with your name on it.

2. LAUNCH: TURN TO PAGE 135 IN YOUR TEXTBOOK AND WORK WITH YOUR NEIGHBORS ON “FOR YOU TO EXPLORE” 2.09 Getting Started

3. Methods for solving? What makes problems 4-8 so much harder than problems 1-3?

4. LAUNCH: YOU CANNOT SOLVE 3T+12 = 5T + 6 BY USING BACKTRACKING. EXPLAIN WHY. 2.10 When Backtracking Doesn’t Work

5. 2.10 Equality on the Number Line 0

7. Now solve the simplified equation using backtracking: 12 = 2t + 6 t is being multiplied by 2 and then you add 6. So to backtrack, we start with 12, subtract 6, then divide by 2. (12-6)/2 = 3, so t = 3

8. 2.10 Equality on the Number Line Check your work: w = 5

9. 2.10 Keeping it Equal

10. Check your work: x = 4 Now turn to page 140 in your textbook and work with your neighbors to complete #1 -11 under “Check Your Understanding”

11. 2.11 The Basic Moves for Solving Equations Launch:  Solve 7x – 8 = x + 16 Now turn to page 143-144 and read the “Minds in Action” dialog with a neighbor. One person is Tony and the other is Sasha.  How does Sasha’s solution differ from yours? How is it the same?

12. 2.11 The Basic Moves in Solving Equations 3x – 5 = x + 7 -x 2x – 5 = 7 +5 +5 2x = 12 ÷2 x = 6

13. 2.11 The Basic Moves for Solving Equations

15. Check your work: 4. s = 6 5. Sample: Add 5 and –s to each side, and then multiply each side by ½.

16. 2.11 Wrap Up Suppose that you teach a robot to do your algebra homework. Give the steps for solving the equation: 73x – 15 = 48x + 99

17. Online Textbooks! Go to: https://www.successnetplus.com/https://www.successnetplus.com/ Your Username is  firstname.lastname@rivervalley  For example: rachel.krajewski@rivervalley Your Password is your student ID followed by your first initial and last initial (capitalized)  For example: 19009999RK