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Symmetry at the Sign Shop

Grade 4 symmetry practice: test dashed fold lines, count lines of symmetry on sign shapes, and draw lines of symmetry.

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
12 questions
Classroom-ready

Details

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

About this worksheet

What students practice

Students decide whether a dashed line is a line of symmetry by imagining a fold.
Students count the lines of symmetry in polygons and other flat shapes.
Students draw every line of symmetry on a rectangle and on a plus-sign shape.

How to use

Before starting, let students fold a paper rectangle in half three ways: across, down, and corner to corner. In Part 1 they can fold paper copies of the signs to check their answers.

Curriculum

Common Core standard covered

4.G.A.3

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

Preview

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Symmetry at the Sign Shop

Fold, count, and draw lines of symmetry on shop signs.

The fold test

A line of symmetry splits a shape into two halves that match exactly. If you fold the shape on the line, one half fits right on top of the other.

The sign makers drew a dashed line on each sign. Sort the signs.

Line of symmetry	Not a line of symmetry

Ana draws a dashed line from one corner of this rectangle sign to the opposite corner.Why is the dashed line not a line of symmetry?

A. The two halves are different sizes.
B. The line does not go through the middle of the sign.
C. When you fold on the line, the corners of the two halves do not land on each other.
D. A rectangle has no lines of symmetry at all.