It engages children on a physical level and a mental one, which is good for learning for certain types of children. I encourage my children, we homeschool, with words. “You did a wonderful job. I’m proud of you.” It is the same thing, broken down into a smaller piece, a click. It lacks a certain emotional, social connection between teacher and child, in my opinion. I also use rewards for completed work and break the job itself down into tasks. It would speed up things, but I don’t think it would have quite the same effect as saying the words. Every child likes to hear they are doing well. I have a son who would be considered ADHD, we have to keep him focused with a physical activity much like they implement in this program. He uses a stress ball. I don’t see this doing well with groups because the clicking is associated with good behavior and each time you click your reinforcing behavior, some of which you may be unaware of.