Browse topics

Curriculum

Explore all 1,590 open curriculum concepts.

Advanced filters
MathematicsMeasurementAges 8–12

Area by Tiling

Find the area of a rectangle by tiling it with unit squares and show that the result equals the product of the side lengths

Entire curriculum

1858 concepts · 9 subjects

Loading map…
Continue learning
Share and support
Compare teaching approaches

Teaching approaches

Gakuva’s recommended starting approach is selected. You can still compare every option.

1 approach

Selected Default Gakuva

Practise the bounded task in Area by Tiling; see exact limits before inferring broader coverage.

Practise the bounded task in Area by Tiling; see exact limits before inferring broader coverage.

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

India's Bathroom Tiles

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

Tile arrays motivate area as rows times columns. Use it for area by tiling, not every perimeter formula.

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

Before you open

Ask how many tiles cover the rectangle and how multiplication matches the count.

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 2026-11-11 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. “India's Bathroom Tiles.” 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

  • Tile a 4×6 rectangle and count 24 squares, then verify 4×6=24
  • Explain why the number of rows times the number in each row gives the area
  • Draw a rectangle on squared paper, tile it, and write the multiplication
“If a rectangular room is 4 m long and 3 m wide, can your child work out its area by tiling it with 1-metre squares in their head — and explain why that equals 4 × 3?”

Curriculum record

Type
Procedural
Subject
Mathematics
Domain
Measurement
Age range
Ages 8–12

Standards

acara-v9:AC9M6M02ccss-math:3.MD.7.athe-ontario-curriculum-mathematics-2020:ON-MATH-2020-G4-E2.5