Teachers tend to instruct topically, which requires the student to use multiple and interconnected concepts to succeed in each instructional unit. Therefore, it is beneficial to combine research on related concepts to form topic driven instruments to better assist teachers in assessing and instructing students. Chemical and physical change as a…

Despite the current legislation requiring sex education as part of the school curriculum in Portugal, great obstacles to its implementation remain. Furthermore, sex education is far from being systematically administered. Thus, the main interest in our project was to validate a scale that measures teachers' attitudes towards sex education. There…