Briefly summarizes methods of presenting laboratory information. Suggests that approaching lab problems requires a combination of methods structured into a problem-oriented learning experience. Focuses on the relationship of the gloxysome to the chloroplast and the steps involved in solving the problem. (DDR)

Describes the investigative case-study approach in biology, a variant of problem-based learning. Students develop questions that lend themselves to scientific investigation and develop their own investigative approaches. Contains 16 references. (DDR)