One of my favorite books as a kid, The Witches explores the story of a young boy who goes to live with his Norwegian grandmother after his parents are killed in a car crash. She is a wonderful storyteller and together they battle England's child-hating witches. Before you start reading the book with your kids have them draw a picture of what they think 'typical witch' looks like. After you read the chapter on "How to Recognize a Witch" ask them once again to draw a picture of what a typical witch looks like, did their pictures change based on the story?
George's Marvelous Medicine
I didn't say all grandparents are nice and loving and George's Marvelous Medicine is definitely a nod to those sorts. When George is left with his nasty old grandmother while his parents are away he decides that the best remedy for her grumpiness is a home-made medicine of his own design. While you want to be careful and make sure your kids don't recreate George's Medicine, this is a great segue for teaching kids about quantities (e.g. a spoonful of, a cup of, a slice of, etc.).
Charlie and the Chocolate Factory
Grandparents are a crucial part of this story, especially Grandpa Joe who's unwavering love and support is ultimately responsible for Charlie's win. This is an opportunity to promote sensory language. You can give each of your kids a small piece of wrapped candy and ask them about what they
-see (e.g. colors, shapes)
-smell (e.g. sweet, fruity)
-touch (e.g. hard, soft, sticky)
-taste (e.g. sweet, bitter, salty)
-hear (e.g. crinkling, crunching, popping)