Ratios compare two quantities, like the size of one part of the body to the size of another part, or to the size of the whole. Human bodies also show interesting ratios. When you draw a vertical line down the center of a body, the left and right sides are almost mirror images of each other. That is what this activity is about: recording, comparing and discovering how the human body measures up!ĭid you know that human bodies come in all sizes and forms? When you start measuring them, however, you will find our bodies show surprising similarities-and even more surprisingly, we can express these with mathematical concepts.įor one thing, our bodies are quite symmetrical. These interesting facts only reveal themselves when you look closely, measure and compare. Our bodies are amazing! They are full of mysteries and surprising facts such as this one: Did you know that you are about a centimeter taller in the morning, when you have just woken up after hours of lying down, than you are in the evening? You might never have noticed it.
