Rakhymgalieva A.2026-03-132026-03-132025Rakhymgalieva A / Features of the use of trigonometric materials in solving complex problems related to right triangles / SDU University / Department of Pedagogy of Natural Scienceshttps://repository.sdu.edu.kz/handle/123456789/2523This thesis explores the specific features of using trigonometric materials in solving complex-level problems based on the topic of right-angled triangles. The primary goal of the research is to improve the quality of mathematics education in schools by introducing methodologies aimed at developing students’ logical and spatial thinking skills. During the study, non-standard problems solvable through the properties of triangles and trigonometric ratios were selected and thoroughly analyzed. The research also identifies the difficulties students face when solving such problems and offers strategies to overcome them. The dissertation includes methodological recommendations for effectively integrating this material into the educational process, along with a set of practical tasks for classroom use. This study is intended for students in general secondary schools.enright-angled triangletrigonometric ratioscomplex problemsteaching methodologThesis