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Grade 1 · unit review

Review: Use Shape Attributes to Build and Describe

Distinguish defining features, build flat composites, and describe solid models.

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Bring the unit skills together

Use these 4 new cases to check your reasoning. Choices are temporary and are not saved to an account, sent to staff or recorded as school grades. Download your current review choices before leaving or reloading.

Unit review questions
1. Which statement correctly describes a square?
Need a hint?
  • Ask whether changing a feature would change the shape’s definition.
  • Squares are also rectangles; rectangles do not have to have unequal adjacent sides.
2. 6 equal squares form one straight row with no gaps. How many square-widths long is the rectangle?
Need a hint?
  • Trace only the outside outline of the whole row.
  • Shared joining edges are inside the composite, not new outside sides.
3. A solid model has two full layers of 6 cubes. How many component cubes are used?
Need a hint?
  • Use the supplied full-layer count even when a sketch hides a cube.
  • A cube’s faces are not separate component cubes.
4. A circle is split equally down its diameter. What is each piece?
Need a hint?
  • Trace the piece’s boundary separately from the whole’s outline.
  • A composite’s name does not automatically name each part.

The download contains your current choices and any checked feedback. Keep the separate transfer-task work in your own document; downloading its instructions does not mark it complete.

Use the skills in a new task

Make a rectangle from two matching squares placed side by side. Explain why its color does not determine its shape.

Work on paper or in your own document. Explain the choices you made.

  • Draw or label the numbers or shape features the task gives you.
  • Say why each calculation or shape choice follows the ideas in this unit.
  • Check that your answer fits the story or drawing in the task.
Compare with a model response

The composite has four right angles and opposite sides equal, so it is a rectangle. Color is not a defining attribute; recoloring it keeps its geometric features.

A different response can also meet the criteria. Compare the evidence and reasoning, rather than copying the wording.