1. Welcome back! Warm-Up… Quickwrite… Add or subtract
Write down three examples of things that are different but equal to each other.
Ex: 4 quarters = 1 dollar

2. Compare and explain your warm-up…
starting with Student #3 (1 min)
Add or subtract

3. Round Robin…
starting with the student who has the shortest hair at your table (1 min)
Write down three examples of things that are different but equal to each other.
Ex: 4 quarters = 1 dollar

4. Solving linear equations

5. Solving linear equations
An equation is a statement that two expressions are equal
Ex: a = b a + c = b + c
A solution is a value that makes the equation true
x + 1 = 2 x = 1 is the solution
Inverse operations are opposite operations that undo each other
Ex: addition vs. subtraction multiplication vs. division

6. POE (Properties of equality)
Addition POE
If we add to one side of the equation, we add to the other too
Ex: if a = b then a + c = b + c
Subtraction POE
If we subtract from one side of the equation, we subtract from the other as well
Ex: if a = b then a – c = b – c

7. examples

8. practice