so i know this sounds horrible, but 2 of the classes this year ask SO many questions..if i don't stop them they will literally spend 40 minutes out of the hour asking questions..but more along the lines of

"is this okay"
"can i do it this way"
"what if..."

i love that they're so active, but i'd like them to learn to keep things on topic a bit more without them feeling dejected

any ideas on how to teach what types of questions they should be asking in class?