The aim of this study is to evaluate project studies in the 6th and 7th grades social studies courses of secondary schools according to opinions of students. This study is a descriptive research in the survey model. The sample is 880 students selected from 6th and 7th grades of 22 secondary schools randomly in central province of Kastamonu. As a data collection instrument, a questionnaire is used in order to elicit opinions of 6th and 7th grade students on project studies in their schools. Quantitative data collection technique was used. The statistical package for the social sciences (SPSS) program was used for statistical analysis. The frequency, percentage, arithmetical mean and standard deviation of the answers were calculated. Independent t-Test, Kruskal-Wallis-H and Mann Whitney-U test was used to analyze the data.