The purpose of present research is to determine the difference between teacher centered training & individual application process (TCT& Iapp) group and problem-based scenarios & collaborative application process (PBS& Capp) group according to their attitudes toward computer (AtC) by an experimental design process. The study group of the research includes 125 pre-service teachers attending to department of primary school teacher education program. TCT& Iapp group (n= 65) was assigned as control group and the PBS& Capp group (n= 60) was assigned as experimental group. The application continued six weeks period during four course hours in a week. The results of the study reveal that the AtC scores of the students in PBS& Capp group are significantly higher than scores of TCT&Iapp group. (C) 2013 The Authors. Published by Elsevier Ltd.