This study aimed to reveal the opinions of prospective teachers about their self-sufficiency in designing and preparing alternative teaching materials and about the educational value of these materials. To this end, exploratory mixed method design was used in the study. The participants of the study consist of the students attending Teaching Technologies and Materials Development Classes at History and Geography Teaching departments at Atatürk University Kazım Karabekir Education Faculty. In line with the study problem, semi-structured interview and questionnaire forms were used for data collection purpose. According to the results obtained, the prospective teachers who prepared alternative teaching materials in the scope of TT-MD course applications found themselves more self-sufficient in designing and preparing these materials when compared to their classmates who did not prepare such materials. The aim of the prospective teachers who prepared alternative teaching materials was to make the course more attractive and interesting for the students while the prospective teachers who did not prepare such materials thought that the subjects they chose were not appropriate for preparing teaching materials. The great majority of the prospective teachers emphasized the feeling opportunity provided by these materials and underlined the possible contributions these materials can make in the teaching of secondary education history and geography courses. On the other hand, some prospective teachers told that these materials would make no contribution in the course and would not attract the attention of the students since there are functional technological tools and materials.