4.L.4.-Determine or clarify the meaning of unknown and multiple-meaning words and phrases based on grade 4 reading and content, choosing flexibly from a range of strategies. This is a creative activity to help students recognize multiple meaning words.
Teaching Idioms? I know I'm preaching to the choir when I say that idioms are more fun than a barrel of monkeys. There is a boatload of idioms at GoEnglish.com. Beyond going over the literal meaning of such phrases as "It's raining cats and dogs!" there are many other out-of-this-world things to try. They are the cat's pajamas, so give them a whirl!