Proper understanding of and learning from physics phenomena and experiments requires--among other competencies--flexible and coherent use of multiple representations (MRs). These can include everything from the "enactive" or "operational" manipulation of the experimental devices and materials to the most abstract level of a…

Aims: The objective of this study was to evaluate the preventive effect of a clinic-based, emotionally arousing, negative information giving intervention on adolescents' protective and risk factors of smoking. Methods: Data of 563 students (18 schools) from a cluster randomized controlled trial conducted in Heidelberg, Germany (2010-2011) were…

Constructive error handling is considered an important factor for individual learning processes. In a quasi-experimental study with Grades 6 to 9 students, we investigate effects on students' attitudes towards errors as learning opportunities in two conditions: an error-tolerant classroom culture, and the first condition along with additional…