Worksheet directions

Grade 1 • Guided Practice • Work with your teacher or a partner. Discuss the model or strategy, then complete each problem.

Sample questions

1. How many sides does a rectangle have? Sides: ___
2. Sort a circle, square, and triangle by number of sides. Answer: ___
3. Make a rule for sorting two shapes. Rule: ___
4. Which shape has four square corners: triangle or rectangle? Shape: ___
5. How can a rectangle be split into two triangles? Answer: ___
6. Why is a circle not a polygon? Explain: ___

See the preview for diagrams, answer spaces, and the complete layout.

Common Core connections

Source labels: 1.G.A.1–2. Review the learning goals below to check the fit for your class.

• 1.G.A.1 — Distinguish defining attributes of shapes
• 1.G.A.2 — Compose 2-D and 3-D shapes

Bring it into your lesson

Review the preview and question content above. Open the resource in Sparkclass to copy it to your Files and use it in your workspace. Check the resulting layout before sharing it with students.