Relevance of the topic. For schoolchildren, chemistry is becoming an irreplaceable lock. They cannot understand a chemistry lesson, understand the text of a problem, distinguish and connect the concepts necessary to obtain given information and search, compose reaction equations, thoroughly perform experimental work, understand its essence and determine a model. Many do not think, do not strive for a lesson, do not show indifference and continue to help the teacher. The most important chapter of chemistry in grade 11 is the need for a differentiated study of the topic "carbonyl compounds". At least in a standard way, it is necessary to increase student interest in classes and improve the quality of knowledge.