Aim of this study is to investigate students' ideas on cooperative learning method. For that purpose students who are studying at elementary science education program are distributed into two groups through an experimental design. Factors threaten the internal validity are either eliminated or reduced to minimum value. Data analysis is done through primary document analysis. Further analyses are done to investigate gender factor in the study. Research revealed that cooperative learning method increases students' awareness to their environment and courses, self-efficacy, self-confidence and help students to socialize. Interesting point of the study is that image or perception of gaining information differs with respect to gender.