Teaching Idiomatic Expressions Using Comic Strips
While it may be culturally-biased, some comic strips can be greatly utilised as a source of motivation for English language learners. I recently discovered a creative teacher (Mr. Frank Degenaar) teaching in Brazil who have compiled a great list of comic strips for the teaching of idiomatic expressions and phrasal verbs. He updates his blog almost every day with new comic strips plus explanation on the expression used.
One example from his blog is:
You may want to visit his blog (Natively Speaking Comics) to explore his collection of useful comic strips.