Hi Anne: Scheduling specific activities based on the time of day is an important consideration. The natural "circadian clocks" most students operate around varies but is mostly during daylight hours. Students who work full time and attempt evening classes probably have the biggest challenge, as do their instructors who seek motivated, participative students. Techniques that work best in just about any class involve earlier testing, creative activites (writing, lecturing), ending with discussion or lab (if applicable). If there's lab, the physical movement seems best planned at the last of the day. Regards, Barry