1. Positive and Negative Numbers by Monica Yuskaitis Modified by RWilson & C Bernhart

2. Definition Positive number – a greater than zero. 0123456

3. Definition Negative number – a less than zero. 0123456-2-3-4-5-6

4. Definition Opposite Numbers – numbers that are the same distance from zero in the opposite direction 0123456-2-3-4-5-6

5. Definition Integers – are all the whole numbers and all of their opposites on the negative number line including zero. 7 opposite -7

6. Negative Numbers Are Used to Measure Temperature

7. Negative Numbers Are Used to Measure Under Sea Level 0 10 20 30 -10 -20 -30 -40 -50

8. Negative Numbers Are Used to Show Debt Let’s say your parents bought a car but had to get a loan from the bank for $5,000. When counting all their money they add in -$5.000 to show they still owe the bank.

9. Positive & Negative Numbers Working with positive and negative numbers is like driving in traffic. You have to watch the traffic signs and follow the driving rules.

10. Hint If you don’t see a negative or positive sign in front of a number it is positive. 9 +

11. Absolute Value Absolute Value: is the distance a number is from zero on a number line. Negative -3 is 3 units to the left of zero. Therefore the absolute value of -3 is 3. 0123456-2-3-4-5-6

12. Vocabulary These are words to look for: Below ( - )Above ( + ) Withdrawal ( - ) Deposit ( + ) Descend ( down )Ascend ( up ) Least (toward the left) - to- Greatest (toward the right) Coldest (toward the left) - to - Warmest (toward the right)

13. Number Line Activity

14. Compare

15. Order

16. Absolute Value