Discussion method is effective in getting the students to think constructively while interacting with the rest of the group. Furthermore, it is proven, that students are more motivated, and internalize material more effectively when they participate actively as learners in the classroom. Teaching staff of Institute of Energy Systems and Environment uses different interactive teaching methods to facilitate students’ acquisition of study materials. One of the methods used is discussion, which was organized on topic “Latvia has wood. Why don’t we use it sufficiently?”. The main conclusion after the discussion was, that the method is viable also for environmental science students, because it gives an insight into what students are thinking and it lets all the students to participate into the process, thus making the material acquisition more easily.