“…The study found that the peculiarity of learning is the speed of mastering the exercises of different series of training tasks, as well as the influence of the mode of physical exercises on motor skills development in boys aged 14 and 15. The obtained data supplement the information about motor skills development in schoolchildren (Samsudin, Setiawan, Taufik, & Solahuddin, 2021;Listyarini, Alim, Oktaviani, Putro, Kristiyanto, Margono, & Pratama, 2021;Abhaydev, Bhukar, & Thapa, 2020), about the influence of exercise modes on the effectiveness of teaching (Ivashchenko, 2020;Kapkan, Khudolii, & Bartik, 2019;Marchenko, Jagiello, Iermakov, Ivashchenko, & Khudolii, 2021).…”