I love making paper designs by cutting piece out of folded paper. If the paper is folded into equal parts, the design formed is a symmetrical figure, such as the paper cut-out shown.
The original piece of paper was folded in half twice. The first fold was from top to bottom and the second fold was from side to side.
Cutting pieces out of the folded paper produces a figure with four lines of symmetry.
A line of symmetry is a line drawn down the center of a figure and if folded on that line the two sides of the line exactly fit together, like placing your two hands together. The cutout figure has four lines of symmetry as shown.
Look around and find things that are symmetrical, such as leaves, flowers, and the body of animals (including yours). How many lines of symmetry can you find on each object you examine?
Science For Every Kid: Geometry |