Hi - if they're enjoying the lesson you're half way there, probably further
. I don't know
Join Us but I wonder if you mean
Join In? I'd certainly recommend that. They fact that you're "only" doing speaking and listening doesn't mean you don't need a coherent syllabus and course plan, and that's what the book would give you. It takes a multiple intelligences approach, and I'm sure you'd find it useful, and fun. That doesn't mean you throw your games and other activities out the window of course - quite the opposite. But the book would help you decide what to do, and when to do it, as well as giving you ideas on how.