Happy Wednesday 
Please take out the following:
o Syllabus signature
o Write down the homework on your stamp sheet
o Piece of paper
Tonight’s Homework:
• Paragraph about the Motivation Article
• P. 6 # 1-16 even 25-37 odd, , 33-35, 38, 40
• Procedure’s Quiz on Thursday
Classroom Expectations
Remember it is a new year and you all have A’s.
If you want to keep your A you need to work for
it.
Website
• http://mshuls.weebly.com/
Bathroom Passes
Tour of My Classroom
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Pencil sharpener
Passing in Papers
Passing out Papers
Agenda/ Learning Objective/ Homework
Absent
No Name
Question Board
Homework Policy
• You will receive a new stamp sheet usually on
Monday.
• On the stamp sheet, it will tell you when your
homework packet is due.
• You will staple ALL your homework and stamp
sheet BEFORE the bell rings the day the
packet is due.
Homework Policy
• You MUST correct all your homework in red pen
EVERYDAY to get the 5 points.
– It is either 0 or 5 points
• You MUST answer the student comments on the
bottom of the stamp sheet.
• There might be some days when I collect the
homework before your stamp sheet is due. This is
because I want to see if you understand a
concept. I might tell you before, but not always!
Homework Quiz
• When your homework packet is due, you will
also have a homework quiz ( 1 question). You
will do this on the back of your stamp sheet!
• It will ask you “Solve Question # 5 on page
180”.
– This is why it is imperative that you correct ALL
your homework!
Motivation Article
On your Paper…
Write ALL the possible symbols/terms for the
following:
–
–
–
–
Addition
Subtraction
Multiplication
Division
• Do this silently.
• You will be turning this in for participation points
.
1.1: Variables and Expressions
Learning Objective
• SWBAT translate between words and algebra.
Think-Pair-Share
What do you think a variable means in math?
What do you think a constant means in math?
Vocabulary
• Variable
– Letter used to represent a value that can change
– EX: 3x+ 4 : variable is _____
• Constant
– Value that does not change
– EX: 3x+ 4 : constant is _____
Vocabulary
• Numerical Expression
– contains only constants and/or operations.
– EX:
• Algebraic Expressions
– Contains variables, constants, and/or operations
– EX:
Brainstorm…Whiteboard Time!
What are different words to describe the
following mathematical operations?
+
–
x
÷
Now take this time to write everything
down in your notes!
Whiteboard
• What are all the ways that you can write “2
times y” ?
Example 1:Translating from Algebra to
Words
Give two ways to write each algebraic
expression in words.
9+r
7m
Whiteboards
Give two ways to write each algebraic
expression in words.
q-3
j/ 6
Whiteboards
Give two ways to write each algebraic expression in words.
1a. 4 – n
4 decreased by n
n less than 4
1c. 9 + q
the sum of 9 and q
q added to 9
1b.
the quotient of t and 5
t divided by 5
1d. 3(h)
the product of 3 and h
3 times h
Example 2: Writing an Algebraic
Expression
1. Seven more than n
2. The product of seven and n
Whiteboards
• The difference of n and 7
• The quotient of n and seven
To translate words into algebraic
expressions, read the problem to
determine what actions are taking place.
Add
Subtract
Put together,
combine
Find how much more
or less
Multiply
Divide
Put together
equal groups
Separate into equal
groups
Whiteboards
John types 62 words per minute. Write an
expression for the number of words he types in
m minutes.
Roberto is 4 years older than Emily, who is y
years old. Write an expression for Roberto’s
age.
Whiteboards
Joey earns $5 for each car he washes. Write an
expression for the number of cars Joey must
wash to earn d dollars.
Miriam is 5 cm taller than Jan. Jan is m
centimeters tall. Write an expression for
Miriam’s height in centimeters.
EX 3:Writing an Algebraic Expression
a) Two times a number plus 5
First define a variable
Whiteboard
7 less than three times a number
Example 4: Evaluating Algebraic
Expressions
Evaluate the expression for the replacement set
{2, 3, 9}.
A. 3b
B.
n
Whiteboards
• Evaluate the expression for the replacement
set {2, 5, 10} .
A. 15- n
B. 10/ x
Example 4: Application
Approximately 85 bottles must be recycled
to produce the fiberfill for a sleeping bag.
Write an expression for the number of bottles
needed to make s sleeping bags
Whiteboard
To make one sweater, sixty-three 20ounce plastic drink bottles must be
recycled.
Write an expression for the number of bottles
needed to make s sweaters.
Closure:Whiteboards
Give two ways to write each algebraic
expression in words.
1. j – 3
2. 4p
Write an expression
3. Mark is 5 years older than Juan, who is y years
old. Write an expression for Mark’s age.
Whiteboards
Shemika practices basketball for 2 hours each
day.
Write an expression for the number of hours she
practices in d days.
Find the number of hours she practices in 5, 12,
and 20 days.