Adding Integers! Using the Chip model. What is an Integer?  A whole number (so not a fraction)  Can be positive or negative  Includes zero Examples:

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Presentation transcript:

Adding Integers! Using the Chip model

What is an Integer?  A whole number (so not a fraction)  Can be positive or negative  Includes zero Examples: 0, 1, -5, -223, 40,876

In your notebooks, brainstorm some answers to the following questions: 1. Why do we need negative numbers? 2. How can we use negative numbers? Think-Pair-Share

Integer Battle Videos

Zero Pairs  A pair of numbers who sum (addition) is zero  In the video we saw that a negative and positive cancelled each other out or battled—We call that finding zero pairs!

Chip Model Represent the problem with integer chips. Now find zero pairs! We have one positive chip left so our answer is… +

Try this one - + Represent the problem with integer chips Find the zero pairs! We have two negative chips left so… - -

More practice: - + Represent the problem with integer chips Do we have zero pairs? Nope! Since negatives are on the same team they don’t battle! So we just add all the chips of the same color (sign) together!

One more: - + Represent the problem with integer chips No battles, no zero pairs! So our answer is…

Adding Integers with Chip Model Practice!