TY JOUR TI IMPLEMENTATION OF THE VISUAL PERCEPTION METHODS AT TENNIS LESSONS WITH DEAF AND HARD OF HEARING CHILDREN KW visual perception methods KW educational and training process with hearing-impaired pupils KW visualization of techniques in tennis KW digital technologies in sports JO Scientific notes of P. F. Lesgaft University AU Kalina, I.G. AU Tagirova, N.P. AU Volkova, K.R. AU Kazakova, N.A. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft