Lesson 2 ­ Evaluate Expressions ­ January 4.notebook
January 04, 2017
Warm­up: Get your handout from the basket and get started!!!
Label the following: Coefficient 2x ­ 13 + 6b
Constant
Variable # of terms
Jan 4­8:24 AM
Jan 3­3:51 PM
Check IP
What did we learn yesterday?
Dec 9­12:31 PM
Spiral: 1/4 Evaluating Algebraic Expressions
Take out your notes from yesterday and your spiral!
Dec 9­12:35 PM
Jan 4­7:51 AM
Evaluating Expressions: An algebraic expression contains one or more variables. You can substitute a number for the variable and then find the value of the expression. This is called evaluating the expression. Ex 1
Ex 2
Ex 3
5x; x = ­2
c ­ 9; c = 4
5(­2) = ­10
4 ­ 9 = 4 + ­9 = ­5 3.24; n = 0.4
n
3.24 = 8.1
0.4
Dec 9­2:15 PM
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Lesson 2 ­ Evaluate Expressions ­ January 4.notebook
January 04, 2017
YOUR TURN in your notes
1. 5(x ­ 6); x = ­2
3. w ­ x + y; w=5, x=6, y=­4
2. g ­ g; g = 3
4. 12 ­ 8d; d=­3
2
Dec 9­3:12 PM
Jan 4­9:36 AM
You have 1 minute to get dry erase boards if you wish.....
Think, Pair, Share a= 3 b= ­4 c= ­6 Write an algebraic expression for each problem.
5. bc ­ 5a
6. c + ab
7. ­3c + a
x + 3
3n
Dec 9­3:17 PM
n ­ 5
1 d
2
OR
d
2
Dec 9­3:20 PM
IP: ws DD­14 Modified
substitute
step­by­step to solve
order of operations
Quiz Friday ~ Everything we do this week
STUDY VOCABULARY!!!!!!
Jan 4­7:50 AM
Dec 9­3:34 PM
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Lesson 2 ­ Evaluate Expressions ­ January 4.notebook
January 04, 2017
Dec 9­11:36 AM
3