Mathematics
Fractions
Conceptual
7–8 yrs
Splitting shapes into equal parts (age 7+)
将图形分成相等的部分（7岁+）
Description
Partition circles and rectangles into two, three, or four equal shares; describe shares as halves, thirds, and fourths; recognise that equal shares of identical wholes need not have the same shape
Mastery Evidence
- Partition a circle into 3 equal parts and label each 'a third'
- Partition a rectangle into 4 equal shares in more than one way
- Explain that two different-looking shares can still be equal in size
Assessment Prompt
If you cut a rectangle into thirds in two different ways (three strips vs three squares), can your child recognise that both give equal thirds — even though the pieces look different?
