The principle of Historicism as a means of motivating students to study geometry in grades 7-9

<jats:p>The chapter discusses the problem of increasing motivation to study geometry in grades 7–9 through the implementation of the principle of historicism. The relevance is due to a decrease in students' interest in mathematics, the formalization of education and the isolation of the subject from real life. The internal and external motives of learning are highlighted, and it is shown that external reinforcement (marks) can reduce internal motivation. It is noted that the principle of historicism allows us to consider science in aspects of the past, present and future, forming a holistic view of the subject and its practical significance. A system of tasks based on a backbone is proposed. The realization of the principle of historicism promotes a meaningful perception of geometry and an increase in the motivation of students.</jats:p>