“…To ensure that a large portion of the population acquires scientific literacy, thus promoting wider societal development, engaging learners in active learning in science seems important. Learner-centred teaching is the main theme for my thesis and, according to previous scholars (APA, 1997;Vavrus et al, 2013), this teaching style links the themes addressed in the three articles in my thesis: inquiry-based science teaching, critical thinking skills and intrinsic motivation. Further, learner-centred teaching is the focus of the operational Tanzanian ordinary level curriculum (MoEVT, 2005), as illustrated in the next section.…”