Since teaching in Swedish preschool was regulated in the Education Act 2010, preschool teachers have appeared to struggle with the concept of “teaching” in their day-to-day practices. This paper is based on a collaborative R&D programme involving preschool teachers and researchers aimed to build knowledge of what can characterize teaching in preschool. The research was carried out in 40–44 preschools/preschool departments in eight municipalities in Sweden between 2018 and 2020. The method was based on a praxiographic approach where preschool teachers tried out different theory-informed teaching arrangements, including didaktik, variation-theory, post-structural gateway and pragmatic perspective. The material for the article consisted of 350 co-plans, 305 co-evaluations and 35 hours of video. Analysis was based on a didaktik premise and can be methodologically described in terms of abductive analysis. Theory-informed teaching arrangements have been tried out and shown to support teachers in conducting teaching in the complex reality that is based on scientific grounds and proven experience. In summary, the analysis is merged in a communicable entity through the concept of “multivocal didaktik modelling.”