8J.Clarke.Pieces of the puzzle:The jigsaw method.In Handbook of Cooperative Learning Methods.Greenwood Press,1994.
9C.R.Haller,V.J.Gallagher,T.L.Weldon,and R.M.Felder.Dynamics of peer education in cooperative learning workgroups.Journal of Engineering Education,2000.89(3):285～93
10B.Oakley,R.M.Felder,R.Brent.and I.Elhajj.Turning student groups into effective teams.Journal of Student Centered Learning,2004.2(1):8～33
