In traditional science teaching, teachers expect the average student to implicitly learn and apply subtle concepts and to connect seemingly disjointed information. Teachers expect them to actively assemble the building blocks of critical thinking, often without example (Meyers 1986). The critical analysis of issues and problems is second nature to…

An instructor contemplating a course transformation to incorporate a student-centered learning environment may feel faced with what seems like a high-wire balancing act--a constantly renegotiated compromise between students' legitimate needs for structure, well-understood expectations, and good grades and instructors' foreknowledge that the path…