Halves & Quarters of Shapes
Partition circles and rectangles into two and four equal shares and describe them using the words halves, fourths, and quarters, and use 'two halves make one whole' to solve equal-group problems where each share is a half
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Halves & Quarters of Shapes means cutting or folding a shape into equal shares. Two equal shares are halves; four equal shares are fourths or quarters. Equal means the shares match in size, not just that there are two or four pieces. Two halves make one whole. We will fold shapes, name the shares, then solve one short equal-group story with halves.
Spend about 15 minutes folding a circle into halves and a rectangle into quarters, naming the shares, stating that two halves make one whole, and solving one “half each” story by pairing halves into wholes.
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Illustrative Mathematics · Practice link — not the full lesson
Equal Shares
Before you open · source notes
Partition paper circles or rectangles into halves and fourths and name the equal shares. This is a folding or cutting activity with adult support and safe paper handling.
Free, no sign-in. Use the student view with your child.
Before you openAsk the learner to name half of and fourth of the same shape. Do not extend the claim to eighths.
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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 2026-11-10 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. “Equal Shares.” 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
- Divide a circle into two equal halves and a rectangle into four equal quarters
- Describe the whole as 'two halves' or 'four quarters'
- Solve 'each of 4 friends gets half a sandwich — how many sandwiches are needed?' by drawing the halves and joining pairs into wholes (2 sandwiches)
“If you give your child a round pizza or a rectangular chocolate bar, can they divide it into four equal pieces and tell you each piece is called a quarter or a fourth?”
Curriculum record
- Type
- Conceptual
- Subject
- Mathematics
- Domain
- Fractions
- Age range
- Ages 5–9
Standards