We've learned now about the moon's lunar phases: full moon, new moon and waxing crescent moon.
The next phase after waxing crescent is called first quarter.
When you look up in the night sky and you see the right half of it, that is a first quarter moon.
A quarter is when you divide something up into four equal parts, a quarter is one of those parts.
So if you divide the moon into four parts: 1 back left (dark), 2 back right (dark), 3 front left (dark), 4 front right (light)
You can see that only one of the four parts of the moon has sun light on it.
(from: wikipedia - category:lunar phases)
Kid Facts - Blast from the past: Kuiper Belt
