Keyword: «affine geometry»

The relevance of the topic of returning interest in geometry is due to the current life situation, where geometric skills play a key role in the development of critical thinking and the ability to adapt knowledge to practice. To effectively study the topic «Menelaus's Theorem» and its applications, it is planned to develop a training module on the Stepik platform, which will include theoretical material, task analysis and control of material assimilation. The target audience is students in grades 8–11, and the main goal is to provide affordable and effective online geometry education. The proposed research methods include questionnaires, the construction of an online module and statistical analysis of the results of the course to improve the educational process. Menelaus's theorem is a fundamental statement in geometry that is used to solve various problems related to straight lines intersecting in a triangle.