PBL was used to teach sections 1-2 of students specializing in clinical medicine in the Class starting in 2008,and traditional teaching was used teach sections 3-4 of students specializing in clinical medicine in the same Class.Results on final exams and a questionnaire were used to evaluate the effectiveness of using PBL to teach Medical Microbiology.Students learning via PBL had significantly better exam results compared to students learning conventionally.The questionnaire indicated that PBL can improve ...