through which all subjects run. CLSS was designed as a transitional phase involving only individual accountability and promotive interaction elements of CL. CL STAD, on the other hand, was intended as formal CL including all steps of STAD and all elements of CL. As achievement-related results make higher gains in CLSS and CL STAD apparent as compared with TI, results related to learning experience revealed that prospective teachers appreciated their learning experience more in both CL conditions as compared with TI.