1. Warm-Up
In this picture, 18 toothpicks make 7 squares. Remove 2 toothpicks, so that you have exactly 4 squares and no pieces of squares left over.

2. Warm-Up
In this picture, 18 toothpicks make 7 squares. Remove 2 toothpicks, so that you have exactly 4 squares and no pieces of squares left over.

3. Unit 2: Expressions, Equations and Functions

4. Variables and Expressions

5. Variables and Expressions
Consider the expression:

6. Variables and Expressions
Consider the expression:
What are the “terms” in the expression and what separates each of them?

7. Variables and Expressions
Consider the expression:
What are the “terms” in the expression and what separates each of them?
What is the same and what is different about each term?

8. Variable:

9. Variable: A symbol representing an unknown value

10. Variable: A symbol representing an unknown value Coefficient:

11. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable

12. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable Constant:

13. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable Constant: A term with no variable

14. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable Constant: A term with no variable Like Terms:

15. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable Constant: A term with no variable Like Terms: Terms that have the same exact variable and exponent

16. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable Constant: A term with no variable Like Terms: Terms that have the same exact variable and exponent Simplest Form:

17. Variable: A symbol representing an unknown value Coefficient: The number multiplied by a variable Constant: A term with no variable Like Terms: Terms that have the same exact variable and exponent Simplest Form: Contains no like terms or parentheses.

18. Simplify. 1.

19. Simplify

20. Simplify

21. Simplify

22. Find the mistakes

23. Practice
Page 29 #29-32
Unit 1, Chapter 1