Transcript positive and negative numbers

POSITIVE AND NEGATIVE
NUMBERS
ACCENTUATE THE NEGATIVE, INVESTIGATION 1 (PAGES 5 – 7)
QUESTIONS TO BE ANSWERED:
1. How do positive and negative numbers help
describe a situation?
2. How can a number line help me solve a math
problem?
3. What happens when negative numbers are
added, subtracted, multiplied, or divided?
POSITIVE AND NEGATIVE
NUMBERS
CREATE A NUMBER LINE!
1. USING A RULER, DRAW A STRAIGHT LINE 20 cm
LONG
2. PUT A “TICK” MARK EVERY 1 cm
3. LABEL A “TICK” MARK CLOSE TO THE MIDDLE
“0”
POSITIVE AND NEGATIVE
NUMBERS
CREATE A NUMBER LINE!
4. LABEL ALL THE POINTS TO THE RIGHT OF “0” IN
ORDER (1, 2, 3, ETC.).
5. LABEL ALL THE POINTS TO THE LEFT OF “0” IN
ORDER (WHICH IS?)
POSITIVE AND NEGATIVE
NUMBERS
1.
2.
NUMBER SETS
POSITIVE NUMBERS:
ALL NUMBERS GREATER THAN ZERO.
NEGATIVE NUMBERS:
ALL NUMBERS LESS THAN ZERO.
POSITIVE AND NEGATIVE
NUMBERS
NUMBER SETS
1.
2.
INTEGERS:
POSITIVE AND NEGATIVE WHOLE NUMBERS
EXAMPLES?
RATIONAL NUMBERS:
NUMBERS THAT CAN BE WRITTEN AS A
FRACTION
EXAMPLES?