Lesson 1 and 2.notebook 1 October 05, 2015 Oct. 5th Mod 2: Lesson 1 HW: • Lesson 1: #'s 3, 4, 5 • Lesson 2: #'s 1, 2, 5 • CRS 3 due tomorrow Do Now: Opposite Quantities Combine to make zero. Place new module in binder!
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Lesson 1 and 2.notebook
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October 05, 2015
Oct. 5thMod 2: Lesson 1
HW:• Lesson 1: #'s 3, 4, 5 • Lesson 2: #'s 1, 2, 5• CRS 3 due tomorrow
Do Now:
Opposite Quantities Combine to make zero.
Place new module in binder!
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positive
negative
addition
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Page S.2
absolute value distance from zero
They have the same absolute value.
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Page S.3
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Page S.3
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Page S.3
7 units to the right
7 units to the left
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For all numbers a there is a number a, such that a + (a) = 0
The additive inverse of a real number is the opposite of that number on the real number line.
The opposite of 3 is 3. 3 + (3) = 0
The sum of any number and its opposite is equal to zero.
Important Information
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f. Repeat the process from part a for the expression 3 + (-2)
g. What can you say about the sum of -2 + 3 and 3 + (-2) ? Does order matter when adding numbers? Why or why not?
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a. What three cards are represented in this model? How did you know?
b. Can you make a connection between the sum of 6 and where the third arrow ends on the number line?
c. Would the sum change if we changed the order in which we add the numbers, for example, (-2) + 3 + 5 ?
d. Would the diagram change? If so, how?
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-5 + (-9)
-5 + 6
-7 + 2
-9 + (-6)
6 + 5
5 + (-9)
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How to play the Integer Game!
Object of the game return to a score of zero or be the closest to zero.
1.) Each player is dealt 4 cards.2.) The remaining cards become a draw pile, flip one card over for a discard pile.3.) First player can draw a card of pick up card from discard pile.4.) They than must discard a card from their hand.5.) Remember the goal is to keep your hands total to as close to zero as possible.6.) The next player will continue in the same manner.7.)Each player will Pick up a card and discard a total of 4 times.8.) After four turns each, the player with the hand closest to zero wins!
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Play the integer game with your group. Use a number line to practice "counting on".
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