STUDENT ANNOUNCEMENTS
 Any student wanting to become involved with HYDROHigginsville Youth Directing Realistic Opportunities please
turn in your information sheet to Mrs. Rhoad or to Teri Ray
at the Chamber of Commerce Office. HYDRO
Organization Meeting and BBQ will be on SUNDAY, Aug 22
at 5:00 at Fairground Park, RSVP to Teri at the Chamber
Office or to Mrs. Rhoad.
 LL Football – register by Friday, August 20th for 6th grade.
Information packets in the office.
 LL Football Cheerleading – register by Friday, August
20th for 6th grade. Information packets in the office.
 School pictures will be Wednesday, August 25
Thursday, August 19
Pre-Algebra
 Fill in Planner
– Assignment: Practice 1-1
(Enrichment 1-1 is extra
credit)
 Agenda for today
– Distribute Textbooks (15
minutes)
– Complete textbook
scavenger hunt (10 minutes)
– Notes (25 minutes)
– Group Practice (15 minutes)
– Independent work on
assignment (21 minutes)

Bell Ringers
1. 1 week = _7_ days
2. 1 foot = _12_ inches
3. 1 nickel = _5_ cents
4. 1 gallon = _4_ quarts
5. 1 yard = _3_ feet
Scavenger Hunt Answers
1.
2.
3.
4.
5.
6.
7.
Solving Equations and Inequalities
Scientific Notation
Red
30
2007
Dilbert
An integer greater than 1 with exactly 2 positive
factors, 1 and the number itself.
8. quarters
Objective for Today’s Lesson
 Students will be able to identify variables,
numerical expressions, and variable
expressions. Also, students will be able to
write variable expressions for words and
phrases.
Why is this important?
Definitions
1. Variable: A letter that stands for a number that is
unknown. (Ex. x+3; x is a variable)
2. Numerical expression: A mathematical phrase
that uses numerals and operation symbols. (Ex
7+3; 7+3 is a numerical expression)
3. Variable expression: A mathematical phrase that
uses variables, numerals, and operation
symbols. (Ex. x+3; x+3 is a variable expression)
Identify each expression as a numerical or a
variable expression. For a variable
expression, what is the variable?
8 x
55
d  43  9
100  6
c5
Numerical
Variable
Write a variable expression for each
word phrase
9 y
1.
Nine more than a number y
2.
4 less than a number n
n4
3.
A number z times three
z 3
4.
A number a divided by 12
5.
5 times the quantity 4 plus a
number c
5(4  c)
a  12
Rags to Riches
Measurement. Write an expression
for each quantity.
1. The number of days in 4 weeks
74
2. The number of days in w weeks
7w
3. The number of pounds in 160 ounces
4. The number of pounds in z ounces
160
16
z  16
Objective for Today’s Lesson
 Students will be able to identify variables,
numerical expressions, and variable
expressions. Also, students will be able to
write variable expressions for words and
phrases.