Goal of this work : checking the influence of the dynamic game (taught in physical education lessons) on the development of motor skills in VIth class middle school students. Materials and methods: The study was conducted over a period of six months, involving 30 students: boys (15) and girls (15), aged between 12 and 13. The evaluation of the athletes’ physical capacity was done by performing the following tests: speed running 50 m, long jump on the spot, resistance running 800 m G / 1000 m B, trunk lifting from lying position to sitting. Given the nature of the study, it did not require the use of sophisticated equipments. Conclusions: Methodical practicing of physical exercises (dynamic games) proves itself more and more successful in terms of growth and normal, harmonical development of children and youth. In terms of motor skills, they have improved, which was revealed by the final testing results. Comparative analysis of the two test results across all samples showed that using dynamic games during the lessons had a positive effect on students. This drove to the effort capacity’s improvment with the parameters that were statistically significant in all the tests.