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MathematicsFractionsAges 7–12

Tenths

Count up and down in tenths; recognise that tenths arise from dividing an object into 10 equal parts and from dividing one-digit numbers or quantities by 10

Lesson

Set out your lesson

Practise the bounded task in Tenths; see exact limits before inferring broader coverage.

Before teaching

Use this short check, then start teaching.

Activity

Understands equal parts; do not treat unequal pieces as tenths.

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

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

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Teaching approaches

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1 approach

Selected Default Gakuva

Practise the bounded task in Tenths; see exact limits before inferring broader coverage.

Practise the bounded task in Tenths; see exact limits before inferring broader coverage.

Family records and proof options

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Learning resources

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

Illustrative Mathematics · Practice link — not the full lesson

How Many Tenths and Hundredths?

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

Tenths and hundredths counting supports understanding tenths. Not every percent conversion.

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 rename a tenth amount using hundredths and say both names.

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. “How Many Tenths and Hundredths?.” 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

  • Count: one tenth, two tenths, three tenths … up to ten tenths (one whole)
  • Show that dividing a shape into 10 equal parts gives tenths
  • Explain that 3 ÷ 10 = 3/10
“If your child splits a chocolate bar with 10 equal pieces, can they tell you each piece is one tenth — and count up from 1/10 to 10/10 in order?”

Curriculum record

Type
Conceptual
Subject
Mathematics
Domain
Fractions
Age range
Ages 7–12

Standards

acara-v9:AC9M3N02acara-v9:AC9M4N04the-ontario-curriculum-mathematics-2020:ON-MATH-2020-G4-B1.6the-ontario-curriculum-mathematics-2020:ON-MATH-2020-G4-C1.4the-ontario-curriculum-mathematics-2020:ON-MATH-2020-G5-C1.4the-ontario-curriculum-mathematics-2020:ON-MATH-2020-G6-C1.4uk-nc-2013:Ma/KS2/Y3/F/1