Grade 3

Lines of Symmetry in Letters

Sixteen block capital letters to test for symmetry. Some have a vertical line (Y, M, T, A), some a horizontal line, H, O and X have two, and F, N, S and Z have none. The answer key is on page 2.

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Size: US Letter (8.5 × 11 in), fits A4
PDF: 2 pages: the worksheet and its answer key
Level: Grade 3
License: Free for personal & classroom use

Find it in:Math Worksheets 3rd Grade Math Worksheets Symmetry Worksheets

About this worksheet

Sixteen block capital letters to test for symmetry. Some have a vertical line (Y, M, T, A), some a horizontal line, H, O and X have two, and F, N, S and Z have none. The answer key is on page 2. It is aimed at third grade, around ages 8 to 9.

Tips for using it

Let kids hold a small mirror on the dashed line: the reflection shows exactly what the missing half should look like.
Count from the line, not from the edge of the grid. Every point is the same number of squares from the dashed line on both sides.
Draw the corner dots first and connect them afterwards; it is easier to fix a dot than a long line.

Printing tips

Download the PDF and print at 100% (or “fit to page” on A4). Page 1 is the worksheet and page 2 is the answer key with the answers in red; print just page 1 if you want to keep the answers for checking. The PNG shows page 1 only. Free for personal, family and classroom use.