Answer Key — 1.G.A.3

For parents and tutors

Do not share with students before practice tests.

Practice Problems — Sets 1–10

| Set | Guidance | | --- | --- | | Set 1 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 2 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 3 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 4 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 5 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 6 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 7 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 8 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 9 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 10 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. |

Practice Problems — Sets 11–20

| Set | Guidance | | --- | --- | | Set 11 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 12 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 13 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 14 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 15 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 16 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 17 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 18 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 19 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. | | Set 20 | Partition circles and rectangles into two and four equal shares, desc… — verify written work and accept reasonable drawings. |

Review tiers 1–10

• Checklists are parent-judged.
• Written items: verify against practice set patterns.
• Standard text: Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

Practice test scoring

| Tier | Pass guidance | | --- | --- | | 1–3 | Most oral tasks smooth; majority of written correct | | 4–6 | 7/10+ total with clear understanding | | 7–8 | 9/12+ with explanations | | 9–10 | Near-perfect; ready to move on |

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