October 14 by biology teachers Kalieva B.S. And A.I. Chumachenko held an Intellectual marathon "Own Game" within the framework of the methodical week of the aesthetic cycle, biology and chemistry. Urgent environmental issues were considered, which are now more relevant than ever. The event was attended by students of grades 8-10 as part of 5 teams. The guys demonstrated a sufficient level of knowledge, high activity. The quiz questions were informative, informative and practical, of a developing nature. The participants were very interested in the issues of an increased level of complexity, which they coped with at a fairly high level.This form of teaching significantly increases the motivation of teaching, the effectiveness and productivity of educational activities, ensures the work of the whole group, allows students to reveal their abilities, "liberate" thinking.