Abstract (eng)
The starting point for this thesis is the method of Educational Reconstruction. On the grounds of this research framework a theoretical introduction to the topic "reproduction and development of flowering plants" is presented and students’ conceptions on this matter are gathered. The individual ideas of eight pupils surveyed in different classes of the 6th and 7th grade were recorded, using qualitative guideline interviews, and selectively organized into different categories. On the basis of qualitative content analysis these categories consist of inductively and deductively selected students’ concepts, which demonstrate existing ideas and misconceptions on the complex topic of plant reproduction. Finally, didactic implications were presented, which can be deduced from combining dominant student ideas and biologically appropriate ideas. Accordingly, the presented thesis specifically addresses student´s difficulties and needs by exploring lesson design, which encourages conceptual reconstruction