http://en.wikipedia.org/wiki/Problem-based_learning

http://www.udel.edu/pbl/

http://www.samford.edu/ctls/problem_based_learning.html

http://www.samford.edu/ctls/problem_based_learning.html

http://www.studygs.net/pbl.htm

This is a sub-category of integrative learning paradigm, which is meant to help students create links between cirricula. Problem based learning (PBL) is the idea that students should work together to solve problems, while then reflecting on their findings.