I know you've witnessed your child use "their" or "there" when they meant "they're". Or the other way around. The same goes for "to, too" and "two". I've even seen adults mix it up. Heck, I've even seen it in published books. 

But that's understandable because these are some of the most misused words in the English language. Don't let your child suffer these mistakes. Let Queen Shinobi teach your child how to use these words properly.