Wara points to an exciting read out of Singapore by Kelvin Tan and Lim Ai Ming, Cynthia Temasek Polytechnic, Singapore:
It is an accepted premise of [Problem Based Learning] PBL that problems, rather than curriculum, should drive learning. Bridges and Hallinger (1992) for example stated that PBL should be directed at knowledge that the students should acquire around problems, not disciplines.
9 pages of bliss. thanks Warra!