The Mathematical Games in French language My diploma thesis deals with one of the possible strategies in bilingual education - CLIL method, which links teaching of a technical subject and a foreign language - mathematics and French, in this case. As a tool for its implementation, I chose games because I consider them as an entertaining and a very available way of teaching. The aim of this thesis was to find out and to describe the potential of this education at different school levels. At the beginning, I focus on general integration of the technical subject and the foreign language, and then I mention the importance of didactic games and basic terminology of mathematical terms in French. The core of this thesis is my own selection of games in Czech and French language intended for three levels of school. This file was inspired by several mathematical books on didactic games. The gained data have been processed on the base of observation and analysis of individual worksheets. The results show the potential of CLIL method as a new possibility for bilingual teaching of technical subjects.