Draw Every Line of Symmetry

Before handing out the worksheet, briefly introduce the concept with a short oral warm-up or a visual model on the board. Let students work through it independently, using a partner or small group only if they want to talk through their thinking, encouraging them to talk through their thinking: "What strategy are you using? How do you know that is right?" After completing the worksheet, review any missed problems together and discuss the reasoning rather than just the answer. For extra support, let students use manipulatives or draw pictures alongside the written problems. These lines of symmetry worksheets work well as daily practice, homework, or a focused review activity.

Draw every line of symmetry on 8 shapes like a square and a regular hexagon, then write how many. A line of symmetry is a line that folds a figure into two halves that match exactly. The directions on the page read: Use a ruler to draw every line of symmetry on each shape. Then, write how many lines of symmetry the shape has in the box. An answer key is included.

Yes, both. We made it for 3rd Grade geometry, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with lines of symmetry. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

A line of symmetry divides a shape into two identical mirror-image halves - folding the shape along this line results in both halves matching perfectly.

A square has 4, a rectangle has 2, an equilateral triangle has 3, and a circle has infinitely many - 3rd graders explore this variety to build a flexible understanding of the concept.

Symmetry appears in architecture, nature (leaves, butterflies, snowflakes), and art - discussing these connections makes lines of symmetry feel relevant and visually meaningful to students.

3rd graders sort shapes by their attributes and see that squares, rectangles and rhombuses are all quadrilaterals (CCSS 3.G.A.1). They find area by counting unit squares and by multiplying length and width (3.MD.C.7) and find the perimeter of rectangles and irregular shapes (3.MD.D.8). These pages also cover angles, polygons and symmetry.

A line of symmetry is a line that folds a figure into two halves that match exactly. On Draw Every Line of Symmetry, a square has 4 lines, a rectangle that is not a square has 2, a regular hexagon has 6 and a parallelogram that is not a rectangle has none. Lines of symmetry are named in CCSS 4.G.A.3, so these pages give 3rd graders an early start.

Yes. All 30 sheets have an answer key, including the area, perimeter and symmetry pages.