1. Intro to Directions: Watch the videos.
Then answer the questions on the slide that follows.
Write your answers and show your work.

2. What is an algebraic expression?
foundations/variables-expressions/algebraic-expressions/numerical- algebraic-expressions

3. Identify the algebraic expressions.
4k + 2
6y + 7d – 2
3 + 2 = 5
12 – 4d = 4

4. Algebraic expressions have variables as well as numbers.
4k + 2
6y + 7d – 2
3 + 2 = 5
12 – 4d = 4

5. Directions: Complete the Algebraic Expression Graphic Organizer
Directions: Complete the Algebraic Expression Graphic Organizer. Write the definitions.

6. What is a variable?
foundations/variables-expressions/algebraic-expressions/variables- definition

7. Identify the variables.
1) 3
2) X
3) n
4) n + k
5) 102

8. The variables are highlighted in red.
1) 3
2) X
3) n
4) n + k
5) 102

9. What is a coefficient?
foundations/simplifying-expressions/simplifying-expressions- examples/coefficient-definition

10. Answer each question below:
What is the coefficient in this expression: 3X – 2
What is the third coefficient in this expression: 2x + 6n – 4k + 7y
What is the second coefficient in this expression: 2k + 3y + 4n
Evaluate 4y – 6 when y = 10
Evaluate 2n – 4 when n = 3

11. THE COEFFICIENT IS ONLY THE NUMBER. IT DOES NOT INCLUDE THE VARIABLE!!!
What is the coefficient in this expression: 3X – 2
What is the third coefficient in this expression: 2x + 6n – 4k + 7y
What is the second coefficient in this expression: 2k + 3y + 4n
Evaluate 4y – 6 when y = – 6 = 34
Evaluate 2n – 4 when n = – 4 = 2

12. What is a term?
foundations/simplifying-expressions/simplifying-expressions- examples/polynomial-term-definition

13. Identify the terms. What is the 2nd term in this expression: 2x3 + 4y
What is the 3d term in this expression: 4x – 6y + 3k – 2
How many terms are in this expression: 4k – 3 + 2y2 + 6n – 4n
How many terms are in this expression: 2x3 + 6n
How many terms are in this expression: 4d + 2d + 60n – 3k

14. Identify the terms. What is the 2nd term in this expression: 2x3 + 4y
What is the 3d term in this expression: 4x – 6y + 3k – 2
How many terms are in this expression: 4k – 3 + 2y2 + 6n – 4n 5 Terms
4) How many terms are in this expression: 2x3 + 6n Two terms
5) How many terms are in this expression: 4d + 2d + 60n – 3k 4 Terms

15. What is the order of operations
What is the order of operations? (Watch both of these videos before answering the problems.)
foundations/simplifying-expressions/order-of-operations/order-of- operations-definition
foundations/simplifying-expressions/order-of-operations/order-of- operations-examples

16. Evaluate using the order of operations.
3 + 4(2 + 2) =
2 + 6(2 -1)2 =
10 – 4(2) ÷ 2 =
20 ÷ 4 + 2(3) =
÷ 2 =

17. Evaluate using the order of operations.
3 + 4(2 + 2) = 19
2 + 6(2 -1)2 = 8
10 – 4(2) ÷ 2 = 6
20 ÷ 4 + 2(3) = 11
÷ 2 = 4

18. How do you simplify expressions?
foundations/simplifying-expressions/simplifying-expressions- examples/like-terms-definition

21. Directions: Use this page to complete the graphic organizer

22. Simplify the following expressions by combining the like terms:
X + X + X + X =
D + D + D + K + K =
2n + 4n + 2r + 6r =
2 + 8y – 2y + 10 =
k + 5k + 2 =

23. Simplify the following expressions by combining the like terms:
X + X + X + X = 4X
D + D + D + K + K = 3D + 2K
2n + 4n + 2r + 6r = 6n + 8r
2 + 8y – 2y + 10 = 6y + 12
k + 5k + 2 = 9k + 17

24. Assessment: You need your text book
Complete Page 413 #1 – 6 and 415 #21 – 26 We will put these in Engrade tomorrow.