Mathematics·Measurement·procedural
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
Suggested ages 7–8
Learning journey
Your child is learning practical measurement skills — using rulers and other tools to measure length, weight, and volume accurately, working with money, and telling time to the nearest minute.
Evidence of 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?'
Assessment prompt
If a pencil is 16 cm and a crayon is 9 cm, can Comparing lengths by measuring work out how much longer the pencil is — without measuring them side by side?
Standards alignment
2.MD.4US · ccss-math
Compare lengths of objects
Common Core State Standards for Mathematics · 2