Abstract
The article is devoted to the study of the application of the "Thematic map" method on the topic: The role of hormones in metabolism, growth and development of the body in the 8th grade biology lesson, as well as testing the effectiveness of this method. The lesson used additional information developed by the author in the form of a thematic map, which provides reliable knowledge that allows students to correctly complete tasks as follows: choosing the right concept, making judgments, filling in a table, a crossword puzzle. The thematic map provides information about the endocrine glands - thyroid, pituitary, pancreas, and adrenal glands, in the normal state and in the state of hyper and hypo function. The effectiveness of this lesson was determined by the results of the students' fulfillment of the criteria and assessment descriptors on this topic in two parallel classes.