[ryantbrown]

Are your children in speech therapy? If not, I highly recommend having them see a professional at least once a week.

One of the other things that really helped me when I was younger was being active in sports. When playing sports you don't have to talk, you just run around and play. It also helps to develop friendships, friends that won't care about any disfluency.

Another thing is practice, kids who stutter are extremely terrified of giving speeches in front of other kids (eg. oral presentations). Do your best to know if they having any speaking commitments coming up and help them prepare by practicing with them. If can make a huge difference. You can try to identify where they might trip up and help them work through it. I can tell you from experience that knowing exactly what you are going to say makes it less likely that you will stutter / block.

The last thing is to actually alter your speech around them, speak slowly and consistently while pausing naturally to show them that it is perfectly normal and even preferred to speaking quickly and getting mixed up.