%0 Journal Article %T Professional development: the feasibility of improving the qualification of a mathematics teacher %A Mendigalieva, G.K. %A Smagulov, E.Z. %A Keldibekova, A.O. %K teacher, mathematics, advanced training, schoolchild, unified national testing %J Journal of Pedagogical Studies %D 2025 %N 10 %P 7 %I INFRA-M Academic Publishing LLC.