Problem-based learning (PBL) is a teaching and learning methodology that encourages students to enquire, problem-solve and work effectively in teams. The problem-driven curriculum in PBL captures the students’ attention and sustains their academic interest by challenging them to seek solutions to given problem scenarios from the multiple perspectives offered by the team members. The essence of enquiry requires them to seek evidence to support, refute or throw doubt on a hypothesis or proposed solution. This process helps the students to develop an open but questioning mind much valued in the science classroom

For more information , please refer to http://asc-net.tp.edu.sg/asc5/pbl_asc/webpage/asc_pbl.htm