Comparing lengths by measuring
Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit
Teaching approaches
Gakuva’s recommended starting approach is selected. You can still compare every option.
1 approach
If a pencil is 16 cm and a crayon is 9 cm, can your child work out how much longer the pencil is — without measuring them side by side?
Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit
Learning resources
Reviewed external links that reinforce this concept. They do not replace Gakuva’s teaching approach.
No reviewed resources for this concept yet.
The teaching approach above still stands. Curated practice links — and later lock-ranked options — will appear here as the shelf fills.
Explore the learning path
2 before · 1 after
This concept
Check understanding
- Measure two objects and calculate the difference in length
- Express the difference using the correct unit (e.g. '7 cm longer')
- Solve a comparison problem: 'How much taller is the bookshelf than the desk?'
“If a pencil is 16 cm and a crayon is 9 cm, can your child work out how much longer the pencil is — without measuring them side by side?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Measurement
- Age range
- Ages 7–8
Standards