1. Do Now 9/17/09 Take out HW from last night. Copy HW in your planner.
“One Left Out” worksheet
Copy HW in your planner.
Text p.68, #20-50 evens
In your journal, continue to work on the NJASK7 prep question from yesterday.

2. Homework “One Left Out”
1) x 9
2) 25 – 65 / 5
3) 24 / 6 x 4
4) 16 – 8 + 9
5) 45 – 4 x 5
6) / 3
7) 9 – (8 – 7)
8) 32 / (8 / 4)
9) 50 – (20 +30)
10) 48 / (4 + 12)
11) 12 x (36 / 9)
12) 17 + (7 – 6)
13) (10 – 6) + (12 + 9)
14) (1 +4 ) x (2 +3)
15) [15 – (4+1)]²
The keys of a piano.

3. Objective
SWBAT graph and compare positive and negative numbers.

4. Section 2.1, “Use Integers and Rational Numbers”
WHOLE NUMBER
a number that is whole (no decimal) and positive.
0, 1, 2, 3, …

5. INTEGER all whole numbers and there opposites.
… -3, -2, -1, 0, 1, 2, 3, …

6. RATIONAL NUMBER
numbers that can be written as the quotient of two integers (a fraction).
… -3,-2.5, -2, -1 ½, -1, 0, 1, 1 ½, 2, 2.5, 3, …

7. REAL NUMBER
the set of all rational and irrational numbers.

8. Using the categories REAL NUMBERS, INTEGERS, RATIONAL NUMBERS, and WHOLE NUMBERS label the VENN diagram below.

9. Real Numbers
Rational Numbers
Rational Numbers
numbers that can
represented as a
ratio or fraction
Integers
Integers
-3,-2,-1, 0,1,2,3…
Whole
Numbers
Whole Numbers
0,1,2,3,4,5…

10. OPPOSITES
Two numbers that are the same distance from ZERO. -5 -4 -3 -2 -1 1 2 3 4 5
negative
zero
positive
What is the opposite of -3?
Opposite of -3 = 3

11. ABSOLUTE VALUE
The distance a number is away from ZERO. Distance is always positive. -5 -4 -3 -2 -1 1 2 3 4 5
negative
zero
positive
What is the absolute value of -4? or |-4|
|-4| = 4
What is -|-4|
-|-4| = -4

12. CONDITIONAL STATEMENT
Has a hypothesis and a conclusion. An IF-THEN STATEMENT is a conditional statement where the ‘if’ is the hypothesis and the ‘then’ is the conclusion.
IF-THEN STATEMENTS are either TRUE or FALSE.
If the statement is FALSE, solve it by providing a COUNTEREXAMPLE.
FALSE; the number
would be negative.
If a number is positive, then its opposite is positive.
If a number is a rational number,
then the number is an integer.
FALSE; 0.5 is an example of a
rational number that is not an integer.

13. Guided Practice
Text p. 68, #11-16
Homework
Text p.68, #20-50 even