Understanding Fractions in Models A and B

The video tutorial explains how to make the fraction of pink blocks in model B equivalent to that in model A. Model A has 5 equal sections with 1 pink block, making 1/5 of it pink. Model B, with 20 blocks, needs 4 pink blocks to match the fraction of model A. The tutorial demonstrates the calculation and reasoning behind this equivalence.

What is Mary trying to achieve with the pink blocks in model B?

• Make them all pink

• Match the fraction of pink blocks in model A

• Double the number of pink blocks

• Remove all pink blocks

How many equal sections are there in model A?

• 5

• 4

• 6

• 3

What fraction of the blocks in model A are pink?

• 1/5

• 1/4

• 1/3

• 1/6

How many total blocks are there in model B?

• 30

• 20

• 25

• 15

What is the relationship between the blocks in model A and model B?

• Each block in model A corresponds to 5 blocks in model B

• Each block in model A corresponds to 4 blocks in model B

• Each block in model A corresponds to 3 blocks in model B

• Each block in model A corresponds to 2 blocks in model B

How many blocks in model B need to be pink to match the fraction in model A?

• 3

• 2

• 4

• 5

What operation is used to determine the number of pink blocks needed in model B?

• Multiplication

• Subtraction

• Addition

• Division

How does the fraction of pink blocks in model B compare to model A after the calculation?

• It is the same

• It is not comparable

• It is smaller

• It is larger

What is the final number of pink blocks needed in model B?

• 3

• 5

• 4

• 6