Tatochenko, V., and A. Shypko. 2017. “herson tate niversity, herson, kraine ODERN RENDS O PGRADE HE ROFESSIONAL RAINING YSTEM F HE UTURE ATHEMATICS EACHER”. ournal of nformation echnologies in ducation (ITE), no. 33 (December):118-42. https://doi.org/10.14308/ite000654.