The aim of this study is to find out the effect on environmental attitude of the active learning method applied in teaching the biology topic "Current Environmental Issues and Human" for 10th grade students. The study was carried out through one group pretest-posttest design as an experimental model. The research sample consists of 50 students who attended at 10th grade. The research data was collected by using the "Environmental Attitude Scale". The data analysis was performed through the dependent groups t-test. The findings revealed a significant difference in favor of the latest tests at the level of students' environmental behavior and attitude. However, no change was observed at the level of environmental thinking. According to these findings, it was found that the active learning method, which is applied in teaching the related topic, had a positive effect on the students' environmental attitude and environmental behavior, while not changing the environmental thinking.