You will need these tools to complete most TeacherGeek projects. Why do you need them? TeacherGeek enables you to build real stuff. With TeacherGeek, you get to cut, tap, ream, and screw.
How many tool sets do you need for a classroom? It works well to have one tool set for every three projects being completed. Most classrooms have six or more tool sets. Tool sets can be reused between class periods and year after year.