Every child is exposed to at least some activity that he or she likes and is good at. A good program focuses heavily on processes, not outcomes. More importantly, it rewards efforts, not results. It's about realizing that no one is good at everything and everyone is good at something. It's the 'doing' that's important.
Task is process-driven.
Everyone can do it. For example, in a task-oriented approach to teaching batting, the teacher and student focus on the fundamentals of stance and swing. Doing the basic skill correctly is rewarded. Students come to realize that they can bat correctly. They learn to enjoy trying and they feel good about themselves.