This essay is a combination of an interview, survey and an observation that involves seven different teachers and thirty-eight pupils in a school situated in a suburb of Stockholm. The purpose of my research is an attempt to give a picture of how a team of teachers in a primary school act together when teaching maths, as the majority of the pupils have another mother tounge than Swedish. Yet another purpose of this essay is to examine what possibilities this team of teachers have in trying to develop the Swedish language within other bilingual pupils and at the same time develop their math comprehension. I have chosen to initiate the theoreti-cal starting point through the points of Rodell-Olgac & Rönnberg & Rönnberg; these authors discuss the importance of language comprehension when it comes to developing ones math skills. I have reached the conclusion in my examination that it is important to raise the impor-tance of language comprehension within math-education. It is crucial that teachers need to create different kinds of working patterns and methods that are adapted accordingly to the learning-ability of the pupils. Thus, teachers also need to show great consideration to the cul-tural backgrounds, expectations, attitudes and feelings of their pupils.