You can see why they get confused, just try to think they way they do....
"Who let the cat out of the bag?".......What cat?
"Let's play it by ear.".....uh, ok...what?
"That's a can of worms".....sick! what are you talking about?
"Eyes on the board!"......How the heck am I supposed to put my eye balls on that chalkboard and stay in my seat at the same time"
"knock your socks off"....that's gotta be tricky
"it's all right I guess"....sweet! I got them ALL right!
Describing that the words people say are different than the meaning of the phrase is a difficult task. One therapist in our school district introduced the idea of a word bubble versus a thought bubble. It is a good way to help the kids visualize that what they said might be different than what they meant.
Picture given to me by Mandolyn, who is a fabulous clinician and I want to be as good as her someday. She also suggested some awesome books by Tedd Arnold for teaching Idioms. These books are so cute and fun with great illustrations.