I often encounter handlers who work independently or for long periods without an instructor and do not know how to plan their training sessions properly: how to choose exercises, how to plan them, how to organize their execution, and how to reward their dogs. Handlers do not understand where to place the start, where to place the finish, and where to place the turns. How to determine the length of the vector. All of this is very important. As a result, training sessions are quite chaotic. The handler and the dog not only fail to learn, but also make mistakes and develop incorrect patterns. I am convinced that it is the instructor's responsibility to educate handlers.