This thesis investigates how teachers in political science course A, all from municipal upper secondary schools work with planning their lessons. Due to nationwide regulations and goals set by the The Swedish National Agency for Education, the teachers have to plan their lessons basing on these regulations. However it is not defined how to concretely implement these regulations when planning for the lessons, which may lead to the fact that the teachers’ own interpretations of the regulations cannot be fully avoided in the process of planning for the lessons. The investigation consists of five interviews made with teachers in political science, all from municipal upper secondary schools. The teachers who have taken part in this report come from two different municipal upper secondary schools. The result in this report partly shows that although the basic reference topics set by The Swedish National Agency for Education is the same for each teacher in political science, the planning of the lessons structure can be very different. For example, when the five teachers plan how to make the pupils understand the concept of "democracy", they all planned their lessons having the regulations and goals in mind, but they all have a unique approach in how to prepare for their lessons and explain the concept of "democracy" for their pupils.