Exploring Integer Addition and Subtraction with Balloons

The video introduces the balloon model to explain integer operations. It uses sandbags and airbags to represent negative and positive values, respectively. Through various examples, the video demonstrates how to add and subtract integers using this model. It also explores alternative methods to achieve the same results and tackles complex problems to deepen understanding.

What is the initial altitude of the balloon in the balloon model?

• 1

• 0

• 2

• -1

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CCSS.7.NS.A.1A

What effect does adding a sandbag have on the balloon's altitude?

• It makes the balloon go up by two units.

• It makes the balloon stay at the same altitude.

• It makes the balloon go down by one unit.

• It makes the balloon go up by one unit.

Tags

CCSS.7.NS.A.1A

If the balloon is at an altitude of 2 and you add one sandbag, what is the new altitude?

• 2

• 3

• 1

• 0

Tags

CCSS.7.NS.A.1A

What happens when you subtract two airbags from an altitude of 1?

• The altitude decreases by 1.

• The altitude remains the same.

• The altitude decreases by 2.

• The altitude increases by 2.

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CCSS.1.OA.B.3

How can you achieve the same result as subtracting two airbags?

• By subtracting one airbag.

• By subtracting one sandbag.

• By adding two sandbags.

• By adding two airbags.

Tags

CCSS.7.NS.A.1A

What is the altitude if you start at 1 and add two sandbags?

• 1

• -1

• 3

• 0

Tags

CCSS.7.NS.A.1C

If you start at an altitude of -1 and subtract three airbags, what is the new altitude?

• -2

• -1

• -4

• 0

Tags

CCSS.7.NS.A.1C

What is the result of adding three sandbags to an altitude of -1?

• -1

• 0

• -4

• -2

Tags

CCSS.7.NS.A.1A

What is the purpose of adding one airbag and one sandbag simultaneously?

• To cancel each other out and keep the altitude the same.

• To increase the altitude by two.

• To decrease the altitude by one.

• To increase the altitude by one.

Tags

CCSS.7.NS.A.1B

What should you think about for your homework using the balloon model?

• How to add and subtract integers.

• How to multiply integers.

• How to divide integers.

• How to solve equations.

Tags

CCSS.7.NS.A.1B