please quietly copy onto your class notebook 92110
please quietly copy onto your class notebook 9/21/10 Our Math Goal: To be able to subtract positive and negative integers using the chip model. Homework: p. 456 Both Try Its 1. How do you represent owing money to someone, or extreme cold temperatures? 2. Write a word problem for the following math equation: -3 + 3 = 0 3. Write a word problem for the following math equation: -3 + -3 = -6 4. Write a word problem for the following math equation: -3 – -3 = 0
is a negative is a positive 1. What is the total for this combination? 2. What is the total for this combination? 3. What is the total for this combination?
Using chips to add/subtract integers P: E: -2 – 3 T: S:
Partner Work • Solve the following: 1. 2. 3. 4. 5. 6. 7. -2 + 1 = ? -2 + -1 = ? 1– 2=? 2– 1=? -2 – 1 = ? -2 – -1 = ?
Brainpop • Adding and Subtracting Integers
US Record Temperatures • The hottest recorded temperature in the US is 134˚F (show travel pix) • The coldest recorded temperature in the US is -80˚F (show travel pix and frostbite) 1. What is range (difference) between the hottest and coldest temperature in the US?
EXIT PASS PART A: Answer the following with your partner: 1. What is -5 + 18 = ? 2. What is -4 – (-7) = ?
Exit Pass • Please come up with a Negative/Positive Integer Word problem on the index card. Show your solution to the problem on the back of the index card.
- Slides: 8