It can be easy for an instructor to rely to heavily on the powerpoint. A poorly crafted powerpoint can have catastrophic results. Over the years, I have seen great and not so great powerpoint presentations. The overloaded, unorganized powerpoint will confuse and frustrate students. The use of powerpoints can also but distance between the instructor and the class as the instructor's back is turned to the students and they end up reading each slide word for word. While an effective method of instruction, I would caution the less experienced instructor on the over use of powerpoint.