English is an international language used all over the world. Mathematics is the language of sciences but it is also a language used in everyday life. Although both are perceived as languages, mathematics and English are considered as two completely distinct disciplines. In this paper we first discuss English and mathematics as languages. Then we present interviews conducted with five mathematics and English teachers in order to explore their views regarding issues of language features, ways of teaching and issues of anxiety and collaboration between English and mathematics teachers. The interviews suggest some communalities in the way English and mathematics teachers relate to the two languages. The connection between the two disciplines seems to challenge teachers' thinking about their teaching.