Check out this video about PBL in Singapore headed by group of researchers from Singapore National Institute of Education, 8 Secondary schools in Singapore conducted inter-school project works using student-centered approach with a web-based platform for communication.

http://www.youtube.com/watch?v=8VTuLobed60

We have also added videos for Hong Kong and Austria.  Just click the “What is PBL?” playlist on our YouTube channel http://www.youtube.com/biepbl