Exploring the Charge Model for Adding Integers

The video tutorial explains how to add integers using the charge model. It introduces the concept of representing integers with positives and negatives and forming zero pairs to simplify addition. Several examples are provided, including adding negative and positive numbers, opposites, and purely positive or negative numbers. The tutorial concludes with a summary of the steps involved in adding integers: representing numbers, forming zero pairs, and identifying the remaining value as the answer.

What is the first step in adding integers using the charge model?

• Directly add the numbers

• Write down each number using positives and negatives

• Combine all negatives together

• Combine all positives together

Tags

CCSS.7.NS.A.1C

What do you need to create when adding integers using the charge model?

• Negative pairs

• Zero pairs

• Positive pairs

• Equal pairs

Tags

CCSS.7.NS.A.1C

In the example -3 + 5, how many zero pairs can be made?

• 5

• 4

• 3

• 2

Tags

CCSS.7.NS.A.1B

What is the result of -3 + 5 using the charge model?

• Positive 3

• Negative 2

• Positive 2

• Zero

Tags

CCSS.7.NS.A.1C

In the example 4 + (-2), what is left after making zero pairs?

• 2 positives

• 2 negatives

• 4 negatives

• 4 positives

Tags

CCSS.7.NS.A.1B

What is the result of 4 + (-2) using the charge model?

• Zero

• Positive 2

• Negative 2

• Positive 4

Tags

CCSS.7.NS.A.1C

What happens when you add opposites together?

• The sum is positive

• The sum is negative

• The sum is zero

• The sum is undefined

Tags

CCSS.7.NS.A.1B

What is the result of adding two negatives together?

• A negative number

• A positive number

• Zero

• An undefined number

Tags

CCSS.7.NS.A.1C

In the example 3 + 2, what is the result?

• Positive 5

• Positive 2

• Zero

• Positive 3

Tags

CCSS.7.NS.A.1C

What is the final step in adding integers using the charge model?

• Make zero pairs

• Combine all negatives together

• Whatever is left over is your answer

• Combine all positives together

Tags

CCSS.7.NS.A.1C