A Teaching Method for the 21st century (or any century!)
Many of us are already incorporating some elements of PBL in our classrooms. For more information, visit these sites. (Also: A nice video summary for new teachers.)
Project Based Learning is "an instructional approach built upon authentic learning activities that engage student interest and motivation. These activities are designed to answer a question or solve a problem and generally reflect the types of learning and work people do in the everyday world outside the classroom."