Remember that using stuttering reduction techniques takes a ton of effort. He will not always want to use them, and that's his choice. He may use them all day at school, but when he gets home, he's just done with it -- don't let that bother you, because it just means home is his "safe space." He feels comfortable stuttering there. He should know that his family accepts him completely, stutter and all, and that it's always safe to stutter at home. Reduce your own speaking rate during interactions: research has shown that children perceive less "pressure" to respond when adults are speaking more slowly around them (keep a natural pace, don't go painfully slow). This does tend to help promote easier speech in children. Another strategy is to not make your whole conversations question and answer based. Too many questions feels so demanding to kids, and they are still learning to coordinate executive functions with communication (memory, grammar, word finding, multitasking, all these skills can impact his ability to coordinate a response with ease). Making fewer or easier language demands really supports a positive environment for promoting fluency. Finally, simply look at learning communication the way you'd look at a child learning to walk: sometimes you see them trip and fall, but you don't make a big deal out of it because you know it's a part of growing up and learning. Stuttering in young children can be thought of the same way: if you trip, you simply dust yourself off and keep going. No pressure, no biggie. Hope some of this helps!