The specialists of Zeya Buylary Nature Sanctuary gave an open lesson “Autumn Environmental Protection” in the Secondary School named after Academician R.Z. Sagdeev. The purpose of the lesson is to give grounding in environmental protection in autumn; educate for picking mushrooms, berries, and nuts; familiarize with the rules of conduct in relation to the migratory and hibernating birds, the animals of forest and park in the pre-winter period. At the end of the lesson the specialists of Zeya Buylary Nature Sanctuary solidified the children’s knowledge by conducting test.