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Story Rug Shapes: What Makes a Triangle a Triangle? worksheet preview

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Story Rug Shapes: What Makes a Triangle a Triangle?

Grade 1 geometry with shape patches on a classroom story rug: tell features that name a shape from color, size, and turning.

Grade 1MathInteractive · Printable

Aligned to1.G.A.1

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 11 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 1
Subject
Math
Question types
Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer, Drawing

About this worksheet

What students practice

  • Students identify shapes by defining features such as number of sides, number of corners, and being closed.
  • Students explain why color, size, and turning do not change the name of a shape.

How to use

Use after a lesson on sides and corners. Show two paper triangles of different colors and sizes first, then let students work through the rug patches on their own.

Curriculum

Common Core standard covered

1.G.A.1

Tell apart the features that define a shape from features that do not, such as color.

Preview

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Name Date

Story Rug Shapes: What Makes a Triangle a Triangle?

Sides, corners, and being closed name a shape. Color, size, and turning do not.

Triangle patches

The story rug has shape patches. Some patches are shaded and some are white. Look closely at sides, corners, and gaps.

1.
Circle every patch that is a triangle.

2.
Look at this patch.Why is it not a triangle?
  • A. It is not shaded.
  • B. It has a gap, so it is not closed.
  • C. It is too big.
3.
Owen sees a big shaded triangle and a small white triangle. He says they are different shapes. Is he right?
  • A. Yes, because they are different colors.
  • B. Yes, because one is bigger.
  • C. No, because both are closed and have 3 sides and 3 corners.

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