Third grade is heavy on figurative language. I introduce similes with these posters. I put them up on a bulletin board a week before I discuss it with the class (generates interest). If someone asks me a question about them, I just say "You'll have to wait and see". This drives them crazy.
Then we discuss how did they feel when I wouldn't tell them what the posters mean. We have a great class discussion. They say things like: crazy like a fox, crazy like a Will E Coyote, crazy like a skunk...etc. This I tell them is a simile. We then discuss all the posters and the kids work in groups to make their own simile. I collect their papers, tweak anything that is not a simile, and then pass them back the next day. The groups then make a poster and I hang it up on the board next to my posters. This is also a great time to teach character education tied to similes.
How do you teach similes?