Exploring Area Model for 4th Grade Multiplication

Miss Gin introduces the area model of multiplication, a strategy that uses the concept of area to simplify complex multiplication problems. She demonstrates this with examples, first breaking down 9 x 12 into smaller parts using place value and expanded form, and then tackling a more complex problem, 8 x 4567. By breaking numbers into smaller, manageable parts, students can solve large multiplication problems more easily. The video concludes with a summary of the method's benefits.

What is the main benefit of using the area model for multiplication?

• It helps in solving harder multiplication problems.

• It is useful for division.

• It makes addition easier.

• It improves subtraction skills.

What formula is used in the area model of multiplication?

• Length times width

• Length divided by width

• Length plus width

• Length minus width

How is the number 12 broken down in the example?

• 10 + 2

• 6 + 6

• 8 + 4

• 5 + 7

What are add-ins?

• Numbers that can be added together to get a sum

• Numbers that can be subtracted to get a difference

• Numbers that can be multiplied to get a product

• Numbers that can be divided to get a quotient

What is the partial product of 9 times 10?

• 80

• 110

• 90

• 100

What is the area of the smaller rectangle with dimensions 9 and 2?

• 16

• 18

• 20

• 22

How is the number 4567 broken down in the complex problem?

• 4000 + 600 + 50 + 7

• 3000 + 600 + 50 + 7

• 4000 + 500 + 60 + 7

• 3000 + 500 + 60 + 7

What is the partial product of 8 times 4000?

• 36,000

• 34,000

• 30,000

• 32,000

What is the final product of 8 times 4567?

• 36,536

• 36,536

• 35,536

• 36,000

What does the area model of multiplication help to achieve?

• It simplifies large multiplication problems.

• It makes division easier.

• It helps in solving addition problems.

• It improves subtraction skills.