Mathematics
Fractions
Procedural
10–11 yrs
Multiplying fractions (age 10+)
分数乘法(10岁以上)
Description
Multiply a fraction or whole number by a fraction, including proper fractions by proper fractions; interpret (a/b) × q as a parts of q partitioned into b equal parts; write answers in simplest form
Mastery Evidence
- Compute (2/3) × (4/5) = 8/15 and show with an area model
- Use a visual model to demonstrate (2/3) × 4 = 8/3 = 2 2/3
- Simplify the product 3/4 × 2/3 = 6/12 = 1/2
Assessment Prompt
If a recipe uses 2/3 of a bag of flour and your child only wants to make 3/4 of the recipe, can they multiply those fractions to find out how much flour they need?