Decimals and fractions (age 10+)
Associate a fraction with division and calculate decimal fraction equivalents for simple fractions (e.g. 3/8 = 0.375); recall and use equivalences between simple fractions, decimals, and percentages in different contexts
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Decimals and fractions (age 10+) means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.
Materials: Paper strips or a folded circle; Pencil and labels (1/2, 1/4). Adult folds a strip into halves and labels 1/2. Child makes three fair shares (halves/quarters) and names each piece. Done: three correctly named equal parts. Stop after the fresh check; keep optional challenge for another day.
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Start practiceDecimals and fractions (age 10+) practice
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Learning resources
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Illustrative Mathematics · Practice link — not the full lesson
Money in the piggy bank
Before you open · source notes
Money in the piggy bank supports relating fraction amounts to decimal money thinking. Not every percent tax problem.
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 connect a fraction of a dollar to a decimal money amount.
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. “Money in the piggy bank.” Licensed CC BY-NC-SA 4.0. External task; Gakuva does not copy, host, embed, or redistribute it.
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Check understanding
- Convert 3/8 to 0.375 by dividing 3 ÷ 8
- State that 1/5 = 0.2 = 20% from memory
- Use fraction–decimal–percentage equivalences to compare 30%, 1/3, and 0.35 and put them in order
“If your child sees 3/8 written on a worksheet, can they convert it to a decimal — and also say roughly what percentage that is?”
Curriculum record
- Type
- Conceptual
- Subject
- Mathematics
- Domain
- Fractions
- Age range
- Ages 10–13
Standards