Exploring Integer Addition with Models

This video tutorial introduces the concept of adding integers using models and number lines. It covers key vocabulary such as absolute value and integers, and demonstrates how to add both positive and negative integers. The tutorial also explains how to handle opposite integers and provides examples and practice problems to reinforce learning.

What is the definition of an integer?

• Any positive or negative number not including fractions or decimals

• A positive number including fractions

• A positive number only

• A negative number including decimals

If the temperature was 2°F and rose by 3°F, what is the new temperature?

• 5°F

• 6°F

• 7°F

• 4°F

How are positive integers represented using counters?

• With a circle and a minus sign

• With a square and a minus sign

• With a circle and a plus sign

• With a triangle and a plus sign

On a number line, if you start at 0 and move to 2, then move 3 more steps, where do you end up?

• 2

• 5

• 3

• 4

If the temperature is -3°F and drops by 4°F, what is the new temperature?

• -8°F

• -7°F

• -6°F

• -9°F

How are negative integers represented using counters?

• With a circle and a minus sign

• With a square and a plus sign

• With a circle and a plus sign

• With a triangle and a minus sign

What happens when you add a positive integer and its negative counterpart?

• You get a fraction

• You get zero

• You get a negative number

• You get a positive number

If you have 4 positive counters and 5 negative counters, what is the result?

• -1

• -2

• 0

• 1

Using a number line, if you start at 0, move to 1, and then move back 5 steps, where do you end up?

• -3

• -4

• -5

• -6

If you have 3 positive counters and 8 negative counters, what is the result?

• -5

• -4

• 5

• 4