1Peter Kahn and Karen O'ILourke. Understanding Enquiry- based Learning. In Terry Barrett, lain Mac Labhrainn and Helen Fal-lon(Eds)[C].Handbook of Enquiry and Problem Based Learning. Gal- way: CELT, 2005,p.1-2.
2L. M. Brodie. eProblem-based learning: problem-based learn- ing using virtual teams[J]. European Journal of Engineering Education, 2009, 34(6), p.497.
3Woei Hung. Theory to reality: a few issues in implement- hag problem-based learning U]. Educational. Technology Research and Development, 2011 (59).p.532,538.
4Dolmans H. J. M. Dolmans, Wim H. Gijsehers, Henk G. Schmidt and Syb B. Van Der Meer. Problem effectiveness in a course using problem-based learning . Academic Medicine, 1993,68(3),p. 211.
5K. H Glew. The problem with problem-based medicfl edu- cation: Promises not kept g]. Biochemistry and Molecular Biology E- ducation, 2003,31(1),p.52.
6J. H. C Moust., H. J. M.van Berkel & H. G.Schmidt. Signs of erosion: Reflectiom on three decades of problem-based learning at Maastricht University[J]. Higher Education, 2005 (50),p.672.
7Graham D. Hendry, Greg Ikyan and Jennifer Harris. Group problems in problem-based learning [J]. Medical Teacher, 2003,25 (6) ,p.609.
8J. H. C Moust., H. J. M.van Bcrkel & H. G.Schmidt. Signs of erosion: Reflections on three decades of problem-based learning at Maastricht University[J]. Higher Education, 2005(50),p.677.
9Krista D. Simom and Peggy A. Emner. Scaffolding disciplin- ed inquiry in problem-based environments. International Journal of Learning, 2005, 12 (6), p.297-305.
10Marcia C. Linn, Douglas Clark and James D. Slotta. WISE Design for Knowledge Integration. Science Education, 2003 (87), p. 524.