Sustainability was a recurring theme during the International Teachers' Day on October 5 when th students  watched the documentary film "My octopus teacher" during our English class. After watching the film, the 8th grade students created a leaflet in English, the aim of which is to promote the preservation of marine and coastal wildlife. The leaflet contained simple rules of conduct on the beach, covering the preservation of the cleanliness of the sea and the beach and preservation of sea creatures.