The purpose of this study is to, determine the effectiveness of the SOAP. To determine the effectiveness of SOAP. SOAP was applied to the experiment group, occupational guidance activities were applied to placebo group. In this study, the Aggression Scale, Trait Anger and Anger Control subscales of Trait Anger Expression Inventory were used. The comparison of pretest-posttest-fallow up test scores of experiment group was made through Wilcoxon Signed Rank Test. Also the comparison of posttest-fallow up test scores of groups was made through the Kruskal-Wallis test. As a result of the study, the fall on level of aggression and trait anger of the experiment group's students was not significant, the rise on anger control scores of experiment group's students was significant and this case kept going in five monthly fallow up period. There was not a significant difference between posttest-fallow up test scores of the experiment, control and placebo groups.