Adding Integers on a Number Line

The video tutorial focuses on modeling integer addition using a number line, specifically for integers between -10 and 10. It includes several examples demonstrating how to add positive and negative integers, emphasizing the movement on the number line. The tutorial also includes reflection questions and quick checks to reinforce understanding. The second part of the video explores adding negative integers, providing further examples and reflection questions.

What is the goal of the lesson?

• To add fractions using a number line

• To model using a number line to add integers between -10 and 10

• To multiply integers using a number line

• To subtract integers using a number line

When adding a negative number on a number line, which direction do you move?

• Right

• Left

• Down

• Up

In the example 8 + (-5), what is the final sum?

• 13

• -3

• -13

• 3

In the example -5 + 6, what is the final sum?

• -11

• -1

• 1

• 11

What should you do if you need to add a positive number on a number line?

• Move to the right

• Move up

• Move down

• Move to the left

In the example 9 + (-2), what is the final sum?

• 7

• -7

• -11

• 11

How can you determine if the sum of a negative and a positive integer will be positive or negative?

• By looking at the larger absolute value

• By always assuming it will be positive

• By flipping a coin

• By always assuming it will be negative

What is the sum of -4 + (-3)?

• -1

• 1

• 7

• -7

Is it possible to get a positive number when adding two negative numbers?

• Only if the numbers are small

• Sometimes

• No

• Yes

In the example -6 + (-8), what is the final sum?

• -14

• 2

• 14

• -2