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Perova M.N. Didactic games and exercises in mathematics. - M., 1996. 8.Bespalko V.P. Pedagogy and progressive learning technologies. /V.P. Bespalko.
Perova M.N. Didactic games and exercises in mathematics. - M., 1996. 8.Bespalko V.P. Pedagogy and progressive learning technologies. /V.P. Bespalko.