Pre-service science teachers need to be aware of eco-literacy and biotechnology as they will teach science subjects to students from the perspectives of 21st-century skills. This study aimed to develop a web-based module on biotechnology and examine preservice science teachers’ eco-literacy skills after using the developed module. The study used a research and development design adopting Molenda’s product development model (Analysis, Design, Development, Implementation, and Evaluation/ADDIE). There were 60 students majoring in science education as the research participants. The data were collected using a needs analysis questionnaire, a curriculum analysis form, a validation sheet, tests, and a response questionnaire. The obtained quantitative data were analyzed using IBM SPSS 25 with descriptive statistical tests with Swanson’s quantifications. Results showed that the web-based module on biotechnology could be developed through ADDIE stages with experts’ high validity results (M = 4.59, valid with revision). The module significantly improved the teachers’ eco-literacy skills on biotechnology topics (F = 14.053, p = .000, N = 60). This result implies that the web-based module on biotechnology can assist preservice science teachers in improving their eco-literacy skills.

The concept of sustainability in visual arts education is a relatively new way of looking at content. Therefore, it is important that the contents of sustainability are systematically integrated into the educational process at all levels of education. In this research, special attention was paid to the specifics of understanding the complexity of the term “sustainability" of pre-service teachers who come from a different educational background and who will also carry out visual arts activities with different aged students in their future work. A free association method with online interviews and artwork analysis was used in this study, with 5 female pre-service teachers from four different European countries. The study revealed that pre-service teachers recognize examples of good practice in architecture, the cultural landscape, and various other visual arts messages - they know what good sustainable practice in the environment and the arts is and what is not. However, they show less understanding of the specifics of materials as carriers of material cultural heritage or of the artworks themselves, as well as of contemporary artistic practices that emphasize themes related to sustainable issues or development. It can be concluded that further interdisciplinary approaches should be used in reaching sustainability goals in visual arts education and wider.