1. Indicator 1.8
I can create and interpret the meaning of equations and inequalities representing problem situations.

2. Why do I need to know this?
To set prices for baby sitting or chores. If you charge a flat fee for taking out the trash for a week, some weeks you will do more work and get paid the same.
You need an equation to make the amount of work equal to the amount of pay.
Does anyone have an example of when using an equation would be beneficial to them?

3. Vocabulary
Equations - A statement that two expressions are _________. An equation must have an ___________ sign.
Example: = ____
Solve - to find a _________ to a problem.
Simplify - to make ___________ or ________ to understand.

4. More Vocabulary
Expression - One or more numbers and ___________ with one or more operation signs.
Example: ___ = 6
Variables - A _______ or a symbol that _____________ an unknown number in an expression.
Example: 5 - c = c = _____

5. WHAT HAPPENS WHEN BOTH SIDES ARE NOT EQUAL?
Inequalities - A statement that two expressions are _________ equal.
One side of the expression is greater than or less than the other side.
Symbols to use: < or >
Example: > 6

6. 5n Get Ready To CHEER!!! What do you do when you see this?
When a number and a letter are side to side don’t forget to _______________.

7. Multiplication and Division
What are the four symbols that tell you to multiply?
X , * , 8 ( and ____
What are the 3 symbols for division?
/ , 6 and _____ 2

8. Write an equation for the following sentence.
When a number is multiplied by 6 and then 8 is added, the result is 26.
What does your equation look like?
M x = 26
6m + 8 = 26
What does m equal?

9. Question?
Joey had some coins. He kept 25 and gave 9 to Chloe. How many coins did he have to begin with? *** Equation

10. Question? Kyle took 18 stickers to school and he came home with 43.
What number sentence could he use to find the difference?

11. What did we learn today about equations and inequalities?
List:

12. Practice