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Mask-Making Day: Lines of Symmetry worksheet preview

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Mask-Making Day: Lines of Symmetry

Grade 4 symmetry practice with mask pieces: sort fold lines, count lines of symmetry, use a mirror line to place eye holes, and draw lines.

Grade 4MathInteractive · Printable

Aligned to4.G.A.3

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What’s included

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

Details

Format
Interactive · Printable
Grade
Grade 4
Subject
Math
Question types
Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer, Drawing

About this worksheet

What students practice

  • Students decide whether a line is a line of symmetry of a two-dimensional figure.
  • Students count the lines of symmetry of shapes, including turned shapes.
  • Students draw lines of symmetry and use one to place matching parts.

How to use

Have paper and scissors ready so students can cut out and fold a shape to check an answer. Use the last question as a short discussion.

Curriculum

Common Core standard covered

4.G.A.3

Find and draw lines of symmetry in two-dimensional figures.

Preview

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Name Date

Mask-Making Day: Lines of Symmetry

Fold, count, and draw lines of symmetry on mask pieces.

Test the Fold Lines

A line of symmetry folds a shape into two halves that match exactly.

1.
Max drew a dashed line on each mask piece. Sort the pieces: is the dashed line a line of symmetry?
Line of symmetryNot a line of symmetry
2.
Zara cut a heart for the forehead of her mask. Is the dashed line a line of symmetry?
  • A. Yes, the two parts match when folded.
  • B. No, the two parts do not match when folded.
3.
A mask has a line of symmetry straight down the middle. The left eye hole is 2 inches to the left of that line. Where must the right eye hole be?
  • A. 1 inch to the right of the line
  • B. 4 inches to the right of the line
  • C. 2 inches to the right of the line
  • D. right on the line

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