Silence is part of music too, so for every note or sound, there is a rest with the same number of counts.

Whole rest:


Half rest:


And quarter rest:


These are counted exactly the same as notes. Notice the difference between the whole and half rest. The whole rest points down while the half rest points up. Think of a half rest as looking kind of like a hat. Half and hat both start with the letter "H." This will help you keep track of the difference.