This master's thesis refers to the use of video as a teaching tool in the subject Didactics of Biology. It comprises two parts, one theoretical and another practical. The theoretical part charts the didactical and practical subjects taught at the Faculty of Education, Charles University in Prague, and deals with the use of video for the professional development of teachers. For the practical part, 8 lesson observation videos were recorded and placed on a newly created website (www.didaktikabiologievidea.cz). The observation videos were submitted to an analysis based on the 3A method and were used afterwards during the courses on Didactics of Biology. A questionnaire was carried out among the students of the teaching profession to evaluate the benefits of the videos for them. The questionnaire surveyed the motivation for studying Didactics of Biology, as well as the impact that these observation videos had on the performance of the teaching profession and the improvement of the teaching abilities. All above stated goals were accomplished in this work. Key words: lesson observation videos, didactics of biology, 3A, methodology, teaching profession, motivation, teaching abilities

The diploma thesis deals with droplet infections and finds out what knowledge, attitudes and behavior pupils of the lower secondary school have towards them. The theoretical part focuses on educational documents in the Czech Republic, including the occurrence of topics about droplet infections in RVP ZV, didactic game as a teaching method and a detail description of selected viral and bacterial droplet infections. In the practical part, the diploma thesis finds out what knowledge, attitudes and behavior students have about droplet infections. Subsequently, a didactic game is performed and the effectiveness of the didactic game is evaluated by comparing the pre-test and the post-test on the basis of changes in the knowledge, attitudes and declared behavior of the interviewed pupils. The results showed that due to the didactic game there was an improvement in the students knowledge and a desired change of attitudes. The declared behavior of students remained unchanged, as the entry level of students in this area was already at a high level.

Teaching skeletal-muscular system in high schools This thesis is devoted to the methods which are applicable to the teaching of biology. The aim of the thesis is to find out which methods are used at two distinctive high schools, compare and contrast them by the use of the students' feedback. It is devoted to the comparison of ŠVP of three subjects and student books that are used there. The practical part is based on the discussion with teachers and questionnaires for students that consequently serve as work sheets. Finally, the thesis compares the attitudes of students and teachers, and way of teaching at grammar school and vocational school.