A difficult student may be a challenge to the objectives of an instructor, but this also provides an opportunity for the instructor to refine and/or improve strategies for teaching in the classroom. This will increase effectiveness for what's being taught, and as the instructor makes goals and objectives of the course and the expectations from the students clear and obtainable, the better the success for each of the students. And in the world of CTE, the better prepared the students will be for success in their chosen career paths