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MathematicsMeasurementAges 7–8

Measuring & Plotting Lengths

Generate measurement data by measuring lengths to the nearest whole unit and display the data on a line plot

Lesson

Set out your lesson

Practise the bounded task in Measuring & Plotting Lengths; see exact limits before inferring broader coverage.

Before teaching

Use this short check, then start teaching.

Activity

Can read a centimetre ruler; measurements must be actual if described as observed.

Policy

Exact directed source edges retained; earlier authorship is not learner attainment.

Printer, credit, and teaching notes

Exact directed source edges retained; earlier authorship is not learner attainment.

Materials
  • These supplied stage cards

  • Scrap paper and pencil; oral/pointing response where appropriate

  • Optional centimetre ruler and five paper strips; otherwise the explicitly labelled supplied practice data.

Sequence
  • Read readiness and decide on support without treating prerequisite authoring as learner readiness.

  • Open Show first and explain its model.

  • Use Guided Try with support and its separate adult key.

  • Close Show and guided keys before Try, unless this Try is explicitly supported.

  • Reflect on an actual attempt, including help used.

No Printer

Use the supplied screen cards; copying the exact task to paper is optional, not required.

Privacy

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view.

Next: Show

Share teaching feedback

Continue learning
Share and support
Family records and proof options

Keep a record of your learning

Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.

Learning resources

Extra practice links — they do not replace Gakuva’s teaching approach.

Illustrative Mathematics · Practice link — not the full lesson

The Longest Walk

Open practice (new tab)
Before you open · source notes

The longest walk supports measuring and plotting lengths. Not every volume measure.

Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.

Before you open

Ask the learner to compare two walked lengths and say which is longer.

Opening this link does not save learning or assess mastery.

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. “The Longest Walk.” 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

  • Measure the lengths of several objects and record the data
  • Create a line plot with a horizontal scale marked in whole-number units
  • Interpret a line plot to answer questions about the data
“If your child measures the length of ten leaves to the nearest cm and records the results, can they display the data on a simple number-line plot — grouping leaves of the same length?”

Curriculum record

Type
Procedural
Subject
Mathematics
Domain
Measurement
Age range
Ages 7–8

Standards

ccss-math:2.MD.9the-ontario-curriculum-mathematics-2020:ON-MATH-2020-G2-D1.3the-ontario-curriculum-mathematics-2020:ON-MATH-2020-G2-D1.5