Comparing Lengths & Heights
Compare two objects directly by length or height and describe the difference using language such as long, short, tall, longer, shorter, taller, double, half
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1858 concepts · 9 subjects
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We compare height with taller and shorter. We compare length with longer and shorter. Line the objects up at the same baseline before deciding.
Spend about 10 minutes comparing two household objects by height and by length.
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Illustrative Mathematics · Practice link — not the full lesson
How Big is a Foot?
Before you open · source notes
Comparing foot-length units supports comparing lengths and heights. Not every conversion formula.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openAsk the learner to compare two lengths and say which unit made the measure change.
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Source, access and review notes
Public Illustrative Mathematics task page. The .html address responds HTTP 308 to this URL. An anonymous GET of this URL on 2026-11-12 returned HTTP 200 with no login or payment prompt. Where a teacher solution is present, it is on the same page as the student task; this check did not find a separate locked student view. An adult can use the student view section and should not read a solution aloud. Advertising was not observed in the fetched HTML text; that is not a browser, device, or ad-free guarantee. This is a paper or discussion task, not an automatically marked interactive game. Opening the link does not save practice or assess mastery. Diagrams on the page use missing or filename-only alt text, so they are not an accessible image equivalent. Accessibility still depends on an adult describing the picture.
Illustrative Mathematics. “How Big is a Foot?.” Licensed CC BY-NC-SA 4.0. External task; Gakuva does not copy, host, embed, or redistribute it.
CC BY-NC-SA 4.0 — link only
Check understanding
- Stand two children back-to-back and say who is taller/shorter
- Directly compare the heights of two towers and describe one as taller
- Use 'longer' and 'shorter' to compare two ribbons placed side by side
“If your child stands next to the kitchen table and the front door, can they tell you which is taller — and whether they themselves are shorter or taller than each one?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Measurement
- Age range
- Ages 4–7
Standards