Moon Misconception in Daughter's Planets Book

My 5 year old daughter recently received her Planets book from her first Scholastic book order.  We're reading a few pages every other night or so, mixed in between other books we are reading.  Overall it's a great book for kids her age.  There's a ton of facts and pictures that bring out the excitement in astronomy.

There are, however, a couple of slight misconceptions I've noticed.  The first is a short statement related to the Moon.  The books says "We see different parts of it [the Moon] depending on how much sunlight shines on it."  I understand the message the book is trying to convey, but this statement is misleading.  It implies that the Sun shines different amounts of light on the surface of the Moon on different days.  Although the intensity of sunlight striking the Moon does change slightly due to slight changes in the Moon-Sun distance, these differences play no role in the phases of the Moon.  Half (50%) of the Moon's surface is illuminated by the Sun at all times.  The same is true for Earth.  Half (50%) of the Earth is illuminated at all times.  In other words, half of the Earth and half of the Moon are currently, and always, experiencing daylight, while the other half is experiencing night.  It's just a matter of how much of that illuminated surface is facing the Earth.

Further details can be found in my previous post on Lunar Phases.