The main purpose of this study was to examine how preschool teachers are working to promote each child's language development and whether they can ensure that they do that. Therefore I wanted to find out what a good language development implies for each teacher, how they work to promote each child's language development in daily practice, how they measure the actual language development and also what conditions the teachers have, to engage in a language development way to work. For the study, I chose a qualitative method, with structured interviews and all together I interviewed six preschool teachers, within the same organization in a suburb close to Stockholm.  The results showed that there is an ambiguity, among the preschool teachers, in what a good language development means, but it can be stated that they do have a language development way to work even if it needs to be developed. Further on, it has emerged that the teachers have the tools to measure children's language development, although they do not have the conditions yet to use the method to the fullest. About the preschool teachers own conditions in order to operate in a language development way to work, I concluded that they have a strong foundation to build on, but they still have much work ahead of them. I also concluded that maybe it would be more relevant to talk about a language development approach, rather than a way to work.