In Tashkent International University of Education on May 16, 2024 was held a master class on the theme “Mathematics as the highest manifestation of beauty”. Sergey Sedov, Acting Associate Professor of the Department of Mathematics and Natural Sciences of MISIS Branch in Almalyk, was invited to conduct the event. The scientifically popular report, including elements of philosophy of mathematics, history of mathematical problems, diluted with a large number of examples of entertaining mathematics, including puzzles on the chessboard aroused great interest of the audience. The master class contained an interactive form. Students took an active part in solving mathematical problems that were offered to them. The master class was interesting and informative.