Zhygajlo N. Psychological organization of the process of mastering mathematical concepts by adolescents.

The dissertation is devoted to the theoretical justification and experimental checking of the influence of different methods of educational material organization (in particular, of the ways of simulating the mathematical tasks) on the process of adolescents' mastering of the main mathematical concepts and on the development of creative mathematical thinking.The author has theoretically grounded and experimentally confirmed the psychological models of the structure of activities, directed correspondingly towards the mastering of mathematical concepts and on towards the simulation of mathematical tasks while solving them. She has also devel;pped and approved the following: a) diagnostic techniques to evaluate learners' mastering mathematical concepts as well as the activities directed towards such a mastering and towards mathematical task simulation; b) psychologically grounded techniques to raise the level of adolescents' mastering the mathematical concepts.