Project Based Learning reflects a belief that students learn best in an atmosphere is one in which they operate in safety, isolated from the “real-world.” Again, this may not be something that most teachers will say, but as I have been reading in Alfie Kohn’s Beyond Discipline, we can often understand thought based on the actions that proceed from it. To students, much of school work, particularly the dreaded worksheet, seems like busy work. While project based learning does reflect a belief that students learn best through exploration, constructing their own knowledge, it still seems arbitrary to students when there is no greater purpose beyond the assignment itself.
Performance Based Learning seems closer to the mark. According to my understanding (I realize that different educators are working with different definitions. Hopefully conversation can stay on substance as opposed to semantics.) , this type of environment is one in which a standard is explicated and the students show mastery by completing a project that is engaging to the students. This definition is paraphrased from the ACSD. To me, this still will seem top-heavy and arbitrary to students unless there is a component that connects the standard to a real-world issue.
Problem Based Learning reflects a belief that students are capable of making a difference in the world and have an obligation to do so. In project based learning, the teacher or class find a problem in the world, whether that is the classroom, school, community, state, etc…, and try to use the skills that they have acquired to solve the problem. Ideally, the solutions will be meaningfully presented and, if possible, put into practice. As Daniel Pink notes in Drive, students need autonomy, purpose, and mastery to achieve optimal motivation. A true problem based learning environment gives students the freedom to make choices about how to solve the problem and present their findings; it will require mastery of certain skills to try to solve the problem and allow students to further develop their skills as they explore; purpose is served by trying to actually work on an issue that is relevant to the students’ lives.
I am not putting problem based learning on a pedestal as a panacea to education. Rather, I would hope that we all examine our practice for our underlying beliefs about students and learning. Feedback is most welcome.