Breaking Apart Addends and Regrouping

In this lesson, students learn to solve addition problems by breaking apart addends to form groups of ten. The teacher demonstrates this strategy through three problems involving toy cars and stuffed animals. Students are encouraged to draw and decompose numbers to simplify addition, reinforcing the concept of regrouping to reach the next ten. The lesson concludes with a check for understanding, ensuring students can apply the strategy independently.

What is the main learning objective of Module 11, Lesson 1?

• To multiply numbers efficiently

• To divide numbers into equal parts

• To learn subtraction techniques

• To break apart addends to form a new group of 10

What is the first step in solving Franco and Martin's toy cars problem?

• Combine the two groups using addition

• Subtract the number of cars

• Divide the number of cars

• Multiply the number of cars

How many toy cars does Franco have?

• 46

• 8

• 54

• 10

What is the purpose of breaking apart addends in the strategy discussed?

• To multiply the numbers

• To divide the numbers

• To form a new group of 10

• To make subtraction easier

In the example of 46 plus 8, what number is used to make a new group of 10?

• 8

• 4

• 6

• 10

After regrouping, what is the total number of toy cars Franco and Martin have?

• 46

• 60

• 50

• 54

How many stuffed bears are there in the second problem?

• 10

• 42

• 37

• 5

What is the first step in solving the stuffed animals problem?

• Subtract the numbers

• Draw to show the problem

• Divide the numbers

• Multiply the numbers

How many more are needed to make a new group of 10 in the stuffed animals problem?

• 5

• 10

• 7

• 3

What is the total number of stuffed animals after regrouping?

• 40

• 50

• 42

• 37