Private In-Person AutoCAD & SketchUp Lessons Each lesson plan is created around the type of work you use the program for. You can use Windows or Mac OS (I recommend windows for both programs if possible) Lessons are typically 2 hrs once a week. The total number is usually between 3 to 6 lessons and depends on your previous experience with computers and the software. You do not need to have any prior knowledge to start lessons. We will work through that together.