I'm probably one of those "quiet" learners. Fortunately I had some great teachers that helped me identify that I had a "quiet quotient"; meaning that I was very comfortable in a smaller group 5-7 people but larger than that, I became invisible. So, you might want to talk with these quiet students and perhaps consider having some learning pod interactions where all need to participate. Also, sometimes the timid need to have more learning victories--not fanfare, just recognition for their successes.
Karyn
