Mathematics teachers and CLIL

summary:This paper deals with CLIL implementation in Mathematics lessons at lower and upper secondary school levesl and presents research results of a survey conducted among almost 800 mathematics teachers from all 14 regions of the Czech Republic. The main attention is paid to the teachers’ willingness to implement CLIL in their Mathematics lessons and their opinions on this way of teaching Mathematics. The paper also reveals the language competence level of the responding teachers and their students