Absolute Value � The absolute
value of a number is the distance
from 0 on the number li ne. For ex-
ample, -3 and 3 both have an abso-
lu te value of 3.
Integer � The integers are the
whole numbers and their opposites.
Inverse Operations � Operations
that �undo� each other are called
inverse, or opposite oper ations.
Negative Inte ger � A number less
than 0 Opposites � -3 and 3 are oppo-sites. Positive Integer � A positive inte-ger is a num ber larger than 0.
Connected Mathematics Project Ev erett Public Schools Mathematics Program
Proposed Time Frame:
Approximately 6 weeks
Accentuate the Negative
Integers
Unit Goals: Learn strategies fo r adding, subtracting, multiplying, and
dividing integers Model situations wi th integers Use integers to solve problems Explore the use of inte gers in real-world situations Graph linear equations
Web Resources
You will find the Integer
Games at the following web
address:
http://matti.usu.edu/nlvm/nav/
category_g_3_t_1.html
Circle 0
Circle 99
Accentuate the Negative
Glossary
Tips for Helping at Home
Good questions and good listening w ill
help children make se nse of mathemat-
ics an d build self-confidence. A good
question opens up a problem and su p-
ports different ways of thinking about it.
Here are some questions you might try,
notice that none of them can be an-
swered with a simple �yes � or �no�.
Getting Started
What do you need to find ou t?
What do you need to know?
What terms do you understan d or
not understand?
While Working
How can you organize the inf orma-
tion?
Do you see any patterns or relation-
ships that w ill help solve this?
What would happen if�?
Reflecting about the Solution
How do you know your answer is
reasonable?
Has the question been answ ered?
Can you explain it another w ay?
At Home:
1 Talk with your child about
what�s going on in mathem atics
class.
2 Look for ways to link mathe-
matical learning to daily activi-
ties. Encourag e your child to
figu re out the amounts for halv-
ing a recipe, estimating gas
mileage, or figuring a restau-
rant tip.
3 Encourage y our child to sched-
ule a regular time for home-
work and provide a comfortable
place for their study , free from
distractions.
4 Monitor y our child�s home-
work on a regular basis by
looking at one problem or ask-
ing your child to briefly de-
scribe the focus of the home-
work. When your child asks
for help, work with them in-
stead of doing the problem for
them.
At School
1 Attend Open House, Back to
School Nigh t, and after school
ev ents.
2 Join the parent-teacher organi-
zation
Phone: 425-385-4062
Fax: 425-385-4092
Email: mstine@everett.wednet.edu
investigation 1 Extending the Number Li ne
Explore the use of integers in appli ed settings
Compare integers using the symbols, =, >,
and
Represent integers on a number line
Investigation 2 Adding Integers
Explore addition of integers using t wo mod-
els, number line and chip board
Develop strategies for adding int egers
Recognize and solve problems involvi ng ad-
dition of integers
Investigation 3 Subtracting Integers
Use a number line and chip model to learn
subtraction of integers
Recognize and use the relationshi p of addi-
tion and subtraction as inverse operations
Recognize and solve problems involvi ng sub-
traction of integers
Investigation 4 Multiplying and Dividi ng Inte-
gers
Learn to multiply and divide int egers
Recognize and use the relationshi p of multi-
plication and divisi on as inverse operations
Recognize and solve problems involvi ng mul-
tiplication and divisi on of integers
Investigation 5 Coordinate Grids
Locate points and their lines on a coordi nate
grid on all 4 quadrants
Answer questions using equations, tables
and graphs
Connected Mathematics Project
Mathematics in
Investigations