On the example of mathematical workshop launched for pupils of upper grades of primary school, we discuss the benefits of workshops related to the improvement of teaching methods and students' knowledge and understanding of mathematics.Through illustrative examples from the workshops we have shown different techniques and possibilities for realization of teaching process in the upper grades of primary schools mathematics. Also, the concept of mathematical workshops is described in detail and the effects of the workshops on pupils knowledge of mathematics, the reactions of mathematics teachers and the popularization of mathematics, are analyzed.