The aim of the work is to determine the asymmetry and functional symmetry, which concerns handedness and footedness of children aged 11–13. The research covered 955 girls and boys from the Lubuskie Voivodeship. The material was collected in 2016–2017 by the author. The research tool was a questionnaire about specific activities performed by the respondents. The collected material was developed statistically, the number of individual symmetries, asymmetries in specific activities and their point value were calculated numerically and as a percentage.