Backs of computers and other hardware components should be dusted periodically with a small plastic broom or feather-type duster. Wires should be free from dust and dirt. Absolutely no eating or drinking allowed. Never allow students to walk into labs carrying food or beverages. Sometimes computer rooms are arranged in a way that can pose classroom management challenges to teachers.
Preparation is the key to maximizing the use of time and resources.
If your goal is project-based learning, you can think about seating arrangements. If your goal is independent student research, for example, you may want to buddy up students to maximize cooperative learning. Do not be frightened by the U-shaped configuration that has students sitting in remote locations. A seating chart such as the one shown in the Appendix can facilitate the task of keeping track of students. Teachers can always move students at any time and for any reason.