Problem-Based Learning engages students with fuzzy, messy problems such as we encounter in real life. Students work in teams with projects they develop based on higher order thinking, collaboration, communication, and "just-in-time" learning of content and skills. In the current climate of standards and frameworks, this is a powerful teaching method for addressing a number of standards simultaneously and economically. Portfolio assessment relates Problem-Based Learning to particular frameworks and benchmarks. Explore the links below to learn more and see examples of this strategy, currently used in about 80% of medical schools, as well as K-12!
What Is PBL? -- Superb resource from San Diego State University with advice on every aspect of PBL; follow the "next page" buttons.