Curriculum placement
Grade 2. This describes the skill, not a learner estimate.
Measuring length with a ruler
Measure and estimate lengths with appropriate units and tools
Problem types
- Measure from a shifted start
- Read the spaces between marks
- Estimate a length from a benchmark
- How much longer, measured on a ruler
- Which is longer, and by how much
Builds on
Leads to
- Line plots of lengths
- Scale drawings of lengths and areas · See it applied
A scale drawing is measured with a ruler and the measured length is scaled to the real length.
Related skills
- Sums and differences on a number line · Related idea
A ruler is a number line: the length of an object is the distance between two marks, found as a difference.
- Fractions on a number line · Related idea
A ruler marked in equal parts is a number line. Fractions of a unit are read at the marks between whole numbers.
Open the interactive map to explore lessons and skill connections.