Hi Christine: This sounds like a great activity. I believe it would effectively get folks back on track. Sometimes, students just lose attention, are preoccupied or feel the information is not interesting. It may take just a simple "snap" of refocus, such as a joke, asking a question, changing media delivery format, ask someone to summarize the past five minutes...whatever, just something that resets the class to continue on in the lesson. But other times, a whole different activity may be needed. Yours is great. Regards, Barry