The use of group discussion method can improve student learning outcomes in the material simply classify living things IImu Sciences Elementary School third grade 21 Ambalau . This study aims to gain clarity about the use of group discussion methods to improve student learning outcomes in the material simply classify living things in the learning IImu Sciences . The method used in this research is descriptive method . This research is a form of action research ( CAR) conducted by researchers and assisted by teacher collaboration . Subjects in the study third grade students of SD Negeri 21 Ambalau . With a data collection tool that observation sheet . The study was conducted as many as 3 cycles . Once implemented corrective action discussion on the results of the use of learning methods to classify animals based on homes has increased . Based on the results of the analysis of data processing and action research which has been described that the results of science learning through discussion of the method of classification of animals based on where his life on the third grade students of SDN 21 pembelaaran Ambalau can improve student outcomes