The aim of this study was to analyze the importance of some physical fitness and motor skills for children between 11-13 years at elementary school. A total of 114 primary school children participated as volunteers with a means age of 10.80 ± 0,40 for 5th grade and 12.83 ± 0,38 for 7th grade. In this study, some motor tests were used to detect differences between pre-adolescence and adolescence on male and female. These tests were respectively: for dynamic balance "The Star excursion balance test," for the agility "T-test," "V sit and reach" for flexibility test and for explosive strength a "20m run (0.1s)." Besides, physical fitness features were taken as height, weight, body mass index (BMI) and waist-hip ratio (WHR). The results of the flexibility showed that the female children had better performances in the 5th grade than those in the 7th grade children (p<0,005). In addition, it was determined that the dynamic balance performance values of the 7th grade female and male children were better than the 5th grade (p<0,005). There were significant differences in agility and explosive strength between the 7th grade female and male children (p<0,005). It was observed that there was an increase in agility, speed and dynamic equilibrium performance data especially from the age of 11 in parallel with growth and development. Especially from this period, it was thought that it was possible to develop motor skills and performance parameters with some sports applications and training.