In the theoretical part of my diploma task I focused on the importance of carrying out the germination trials as well as which teaching aims could be attained by such trials. It is necessary to plan the activities by which the pupils self-independently research and monitor nature. In the empirical part of the mentioned task, a short research was carried out by a questionnaire for the teachers of natural sciences. I checked whether the teachers of natural sciences at primary schools carry out the germination trials and the way they do them. By the aid of the experimental part of my task, I optimized the carrying out of the germination trials, which are suitable for teaching natural sciences in the 6th and 7th classes of primary schools and I examined the germination of different vegetable species. I selected the plant for the germination trials according to the species available at the shops and seedman`s shops. Most often, the germination of beans and maize is presented in the text books. My aims was to find some additional vegetable species of which their seeds are suitable for carrying out the germination trials according to the course syllabus. I chose 23 vegetable plants, among them 16 dicotyledonous and 7 monocotyledonous. The research showed that 14 species are suitable, 3 less suitable and 6 unsuitable to use at the germination trials at primary schools.
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