Eureka Math Grade 3 Module 5 Lesson 21 Insights

This video tutorial for third-grade students covers the concept of equivalent fractions using number lines. It begins with an introduction to equivalent fractions, explaining how fractions that occupy the same position on a number line are equivalent. The tutorial then demonstrates dividing intervals into fourths and converting them into eighths. Students learn to identify equivalent fractions and practice with examples involving fourths, eighths, thirds, and sixths. The video emphasizes the importance of visualizing fractions on a number line to understand their equivalence.

What does it mean for two fractions to be equivalent?

• They have the same denominator.

• They add up to 1.

• They have different numerators.

• They represent the same value on a number line.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

How can you divide an interval into fourths?

• Label every fourth interval.

• Divide by 4.

• First divide it in half, then divide each half in half again.

• Divide it into 4 equal parts directly.

Tags

CCSS.1.G.A.3

What fraction represents the same location as 2/4 on a number line?

• 1/2

• 3/4

• 4/8

• 2/8

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the equivalent of 1/4 in eighths?

• 2/8

• 4/8

• 1/8

• 3/8

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Which of the following fractions is equivalent to 5/4?

• 20/8

• 10/8

• 5/8

• 15/8

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

How many eighths are equivalent to one whole?

• 12/8

• 4/8

• 8/8

• 16/8

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the equivalent fraction of 6/4 in eighths?

• 6/8

• 12/8

• 24/8

• 3/8

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What fraction represents a third on a number line divided into sixths?

• 6/6

• 3/6

• 2/6

• 4/6

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Which of the following is NOT an equivalent fraction of 2?

• 16/8

• 8/4

• 12/6

• 10/5

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

How can equivalent fractions be identified on a number line?

• By their distance from zero.

• By their denominators.

• If they have the same numerator.

• If they occupy the same location.

Tags

CCSS.4.NF.A.1

CCSS.5.NF.B.5B