5.3 Multiplying and Dividing Fractions
Unit Goals
- Students extend multiplication and division of whole numbers to multiply fractions by fractions and divide a whole number and a unit fraction.
Section A Goals
- Recognize that $\frac{a}{b} \times \frac{c}{d}=\frac{a \ \times \ c}{b \ \times \ d}$ and use this generalization to multiply fractions numerically.
- Represent and describe multiplication of a fraction by a fraction using area concepts.
Section B Goals
- Divide a unit fraction by a whole number using whole-number division concepts.
- Divide a whole number by a unit fraction using whole-number division concepts.
Section C Goals
- Solve problems involving fraction multiplication and division.
Lessons
- 1
One Piece of One Part
- 2
Represent Unit Fraction Multiplication
- 3
Multiply Unit Fractions
PLC Activity
- 4
Situations about Multiplying Fractions
- 5
Multiply a Unit Fraction by a Non-unit Fraction
- 6
Multiply Fractions
- 7
Generalize Fraction Multiplication
- 8
Apply Fraction Multiplication
- 9
My Own Flag (optional)