A fraction of an amount
Share apples equally and take some of the parts. Then scale a recipe up and down.
📖 Start here: read the steps of the “Lesson” in order (1, 2, 3 …) and answer each question. Then continue with “Practice”.
- UK: Year 2
- France: grade 4
- Germany: grade 3
- Iran: grade 3
- Palestine: grade 3
- Ukraine: grade 3
- Russia: grade 3
Guide
This studio covers Year 2–3 work on fractions of amounts. To find 13 of 12, share 12 into 3 equal parts and take one part. To find 34 of 20, make 4 equal parts of 20 and take 3 of them.
The denominator says how many equal parts to share into; the numerator says how many parts to take. A common slip is to give the numerator or denominator itself as the answer (saying 13 of 12 is 3).
The last two missions make a recipe 3 times bigger and then 13 of the size: every amount changes in the same way.