The purpose of this study was to examine how teachers conduct their teaching to be language developing, and how they in a practical way work with semi-speaking students who have language deficits in the Swedish language and / or their native language. To carry out this study, I used qualitative interviews as a method and I have interviewed six teachers working at a high school. The school that these teachers work at execute a language developing teaching throughout all the courses in the school. All teachers have a similar idea of what language developing work is, however, how they go about and what is emphasized most in the teaching differs. The reason for this is because these teachers have different experiences with the language developing teaching. These professionals agree that this approach is very important and that all teachers, regardless of subject, should work in a language developing way, in parallel with the rest of their subjects. They also agree that this approach benefits both immigrant students and ethnic Swedish students. Another way for these teachers to work language developing has been to work with genres. Since the teachings of genres include language and subject content integration, this has been a way to expand their language developing teachings. One clear approach in their teaching has been to support their pupils, which is a central point within the genre-based pedagogy. The reason for the support is to stimulate the pupils and to make their education easier and more approachable, without lowering the standards of the content being taught. Thus making the teaching more adapted to the needs of every individual.