The main aim of this diploma thesis was creation of functional experiments and supporting teaching materials for high school students which would clearly demonstrate the processes of photomorphogenesis in plants. Proposed experiments had to be verified in practice on the basis of their reliability, repeatability and reproducibility in schools. It was necessary to drew up the educational materials for each experiment focused on observation of photomorphogenesis plant's reactions. These materials give students the basics of scientific work and specifically they increase the interest in experimental plant biology. The first part of the thesis is literary introduction that provides the theoretical background to the topic of photomorphogenesis for teachers. It summarizes the current of the art mechanisms and manifestations of photomorphogenesis processes of plants. The second didactic part of the introduction deals with the framing up teaching of plant physiology into current curricula of education in the Czech Republic. For the formativ of educational materials experiments had to be designed to demonstrate reliably basic photomorphogenetical processes. Three experiments were designe dat: 1. plant phototropism, 2. negative plant phototropism and 3. plant scotomorphogenesis.To select these experiments I...