Problem: You are working with a child who is hard to understand because he speaks too quickly.
Generally, my focus will be on clarity rather than rate. I’ll say, “It is important that you say all your sounds when you speak.” Then, I’ll demonstrate clear speech and unclear speech. Often, the rate automatically reduces when the child focuses on clearly articulating all sounds.
If you feel focusing on rate is what you would like to do, you can give out “speeding tickets” when he speaks too quickly. His goal will be to not get more than x number of tickets in a session in order to get a sticker or candy treat.