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Taking into account (German) students' deficiencies in scientific literacy as well as reading competence and the "mother tongue + 2" objective of the European commission, a bilingual course on molecular biology was developed. It combines CLIL fundamentals and practical experimentation in an out-of-school lab. Cognitive and affective evaluation of 490 students from upper secondary schools followed a quasi-experimental design, including two experimental (bilingual course and monolingual course) and one control group that did not take part in any of the courses. Cognitive achievement concerning molecular biology and self-concept were measured in a pre, post, follow-up test design. The study has shown that cognitive achievement concerning biological content knowledge of students having participated in a bilingual course (English and German) does not differ significantly from cognitive achievement of those that have participated in a monolingual course (German). Regarding biological self-concept, no significant differences between students having assessed themselves as being rather interested and talented in foreign languages and students having assessed themselves as being rather interested and talented in science could be observed. This indicates that bilingual courses in an out-of-school lab are equally beneficial for both of these groups.

Teaching with and about technology is part of science teachers' 21st century skills. To foster technology-enhanced practice, teachers need to acquire both technological pedagogical content knowledge (TPACK on action) and positive behavioral orientations toward technology exploitation. However, it remains unclear if the gained knowledge is applied in practice (TPACK in action). Therefore, studies are required to investigate the interplay of programs promoting TPACK on action, behavioral orientations, and resulting TPACK in action. This paper presents an approach that explicitly links pre-service science teachers' pedagogical content knowledge (PCK) with TPACK development in two undergraduate modules, following the transformative view of TPACK. TPACK on action and behavioral orientations are captured through a questionnaire at three points in time. Additionally, lesson plans are analyzed to evaluate the quality of technology use and cognitive engagement, approximating TPACK in action. The results show a significant increase in pre-service science teachers' (N = 133) self-rated TPACK on action and behavioral orientations between pre- and post-test, with moderate to large effects. Moreover, the analyses of lesson plans reveal a high quality of technology exploitation in the planned lessons, indicating distinctive TPACK in action after attending the modules. This theory-based approach is supported by empirical data, and highly regarded by participants, making it a successful model for course redesign at other universities. [ABSTRACT FROM AUTHOR]