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Curipod lesson about topic "Multiplying and Dividing Fractions"

Updated 3 months ago

1. Word cloud

120 seconds

What does it mean to multiply fractions?

2. Slide

60 seconds

"5.NF.3 Solve word problems involving division of whole numbers leading to answers in the form of fractions or mixed numbers.
5.NF.4 multiply a fraction or whole number by a fraction"

Learning objective:

3. Slide

60 seconds

Fractions are numbers that represent parts of a whole. Multiplying fractions is similar to multiplying whole numbers. Dividing fractions is similar to dividing whole numbers.

Multiplying and Dividing Fractions

4. Slide

60 seconds

Fraction: A fraction is a number that represents part of a whole. Multiplying: Multiplying fractions is when you multiply the numerator of one fraction by the numerator of another fraction, and then multiply the denominator of one fraction by the denominator of the other. Dividing: Dividing fractions is when you flip the second fraction (so it is now a reciprocal), and then multiply the two fractions.

Concepts:

5. Slide

60 seconds

The Egyptians were one of the first civilizations to use fractions. The ancient Greeks used fractions in their music theory. The Leibniz formula for multiplying fractions was first discovered in 1694.

Fun facts:

6. Open question

660 seconds

Work together in pairs: If John has 3/4 of a pizza and he shares it with his friend, how much pizza will each person get?

7. Open question

660 seconds

Work together in pairs: What is the answer to 4/7 divided by 1/3?

8. Drawings

450 seconds

Brain break: Draw a three-headed alien riding a unicycle while juggling a bunch of bananas!

9. Poll

300 seconds

What is 1/4 + 1/4?

- 1/2
- 2/4
- 1/8
- 4/4

10. Poll

300 seconds

What is 4/5 - 1/5?

- 3/5
- 3/10
- 5/5
- 1/5

11. Poll

300 seconds

What is 3/4 * 2/5?

- 6/20
- 1/5
- 6/5
- 3/20

12. Poll

300 seconds

What is 12/15 divided by 3/5?

- 4/3
- 4/5
- 15/12
- 3/4

13. Poll

300 seconds

What is 5/6 divided by 2/3?

- 5/4
- 2/5
- 3/2
- 5/2

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