Children's Book Vocabulary

As adults, we often forget that children can comprehend more than they can articulate, and we end up communicating to them below their level, leaving them bored. Or, the opposite can happen: children are growing up faster than we did and act very sophisticated although their vocabulary skills are underdeveloped. Striking the balance between writing below or above their level is tricky.

Alijandra Mogilner, Children's Writer's Word Book, 1999