How is this different from the lines of symmetry sheet?

The regular sheet asks how many lines a shape has, and your child writes a number. This one asks your child to draw a line. Judging and drawing are different skills. Drawing shows you whether your child knows where the line goes, not only that it exists.

What if my child draws a different line than the answer key?

That can be fine. The sheet says more than one correct line may be possible. Check the drawn line the way the key would: pick a corner and see whether its partner sits the same distance from the line on the other side. If it does, the line is right.

How many problems are on the sheet?

Five, each a shape to draw on, so the page stays short and there is room to draw with care. The sheet covers 4.G.A.3, the 4th grade standard that asks children to draw lines of symmetry as well as recognize them.

4th grade drawing lines of symmetry

4th grade drawing lines of symmetry worksheets

Drawing lines of symmetry worksheets for 4th grade turn the usual question around. Instead of counting fold lines, your child draws one. Each of the 5 problems prints a shape, and the instruction asks for one line of symmetry on each. Some shapes allow more than one correct line, and the sheet says so. Any true mirror line earns the mark.

Free printable PDF worksheet, aligned to Common Core 4.G.A.3.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Draw one line of symmetry on each shape. More than one correct line may be possible.

A point is 3 grid squares left of a vertical mirror line.
Answer: Its reflection is 3 squares right of the line, at the same height.

Most problems on this sheet sit beside a picture, model or diagram, so this is the worked example the sheet itself prints. The answer key on page two prints the answer under every problem.

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on each sheet

Drawing lines of symmetry. Draw one line of symmetry on each shape. More than one correct line may be possible. 5 problems per page.

Every version prints on US Letter or A4, with its answer key after the problems.

This sheet is one of the versions on the 4th grade lines of symmetry page, with its own difficulty choices and its own answer key.

How to teach this

Drawing a line is harder than judging one, because a slightly tilted line is wrong even when the idea is right. Have your child pick two matching corners first, then draw the line that sits halfway between them. The Remember box on the sheet puts it this way: a reflection keeps matching points the same distance from the mirror line, on opposite sides. That is the check. After each line, pick one corner and count grid squares across to the line, then the same count on the other side. If the count does not land on the partner corner, the line is off. When a shape allows several lines, one is enough. A ruler helps, and so does turning the page so the line runs straight up and down.

Watch for: Kids draw a line that cuts the shape into two equal halves and call it symmetry. A rectangle's diagonal does that, but the halves do not fold onto each other. Halves must match when flipped, not only in size. Kids draw the line where the shape looks balanced without checking a single pair of points. One corner and its partner, counted from the line, settles it in a few seconds.

Common questions about 4th grade drawing lines of symmetry

How is this different from the lines of symmetry sheet?: The regular sheet asks how many lines a shape has, and your child writes a number. This one asks your child to draw a line. Judging and drawing are different skills. Drawing shows you whether your child knows where the line goes, not only that it exists.
What if my child draws a different line than the answer key?: That can be fine. The sheet says more than one correct line may be possible. Check the drawn line the way the key would: pick a corner and see whether its partner sits the same distance from the line on the other side. If it does, the line is right.
How many problems are on the sheet?: Five, each a shape to draw on, so the page stays short and there is room to draw with care. The sheet covers 4.G.A.3, the 4th grade standard that asks children to draw lines of symmetry as well as recognize them.

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Aligned to Common Core 4.G.A.3. Reviewed by the One more sheet team. Content version 241, updated September 2026.

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