When you look in a mirror, you see your **reflection,** which is a left-to-right reverse image of you. In the photo the baby is pressing his right hand against what appears to be the left hand of his twin.

**Reflection** is a math term that refers to the mirror image of a figure that has been flipped over a line.The line is called the **line of symmetry.**

**Flip** means to turn a plane figure over. For the diagram, figure B is a **reflection** of figure A. Figure B is a **flipped **version of figure A.

**For more information and fun, see MATH:LINES OF SYMMETRY.**