Any way to work on my stutter?

Any way to work on my stutter? I don't stutter when talking to friends or anything. But in certain situations, like talking to a classroom, I do even though I don't really feel nervous or anything. Like I was going from class to class this week to talk about stuff and I noticed some people were losing interest, probably because I wasn't very concise because of my stuttering. Is there any way to work on it, or should I fully accept it? To be more specific, I'm referring to frequent pauses, not repeating words