
I have two of Lynne Truss' books that teach children about grammar. One is
The Girl's Like Spaghetti which explains,
why, you can't manage without apostrophes, and the other is
Eats, Shoots and Leaves, which informs children
why, commas really do make a difference. These are great reads for anyone who ever wanted to learn grammar in a fun way (wait, grammar isn't fun?)