Problem-Based Learning: Where Did it Come from, What Does it Do, and Where is it Going? - 1 views
http://journals.sagepub.com/doi/abs/10.1177/016235329702000402
http://journals.sagepub.com/doi/abs/10.1177/016235329702000402
This gives some really unique authentic problems. PBL could be built around some of these ideas, or they can be used to supplement assessment. http://map.mathshell.org/lessons.php