The main objective of this study was to find out what pedagogical documentation does and to get knowledge of what you may need to consider in order starting a process of change with a focus on pedagogical documentation. To get answers to my questions, the study is based on pedagogical theories from scientists and interviews with three preschool teachers who have different experience on documentation. My main questions were: What characterizes a pedagogical documentation? What tools / materials do I need to do a pedagogical documentation? What is important to consider when starting the process of change with pedagogical documentation? The result shows that pedagogical documentation is an approach that is based on that one is curious, interested, observant, listens, talking and researching with children and colleagues. You give the kids great participation which you can then pick up the children's learning processes and reveals that the business and the children develop according to curriculum objectives. Prior to this change you need to have an organization that ensures time for reflection with colleagues is for the work to develop further, and thereby become a pedagogical documentation. Each educator must demonstrate a shared interest and responsibility in which all knowledge is of value.