This paper explores the effect of digital differentiation on student performance using a randomized experiment. The experiment is conducted in a second year biology class among 115 prevocational students in the Netherlands. Differentiation allowed students in the treatment group to work at three different levels. The results show that there is a…

Amid calls for more practice-based teacher education, this article presents a concrete illustration of a practice-based bridging strategy for preparing high school biology teachers to enact open-inquiry labs. Open-inquiry labs were considered a core practice frame that served as a context for identifying core practices and for giving coherence to…

In this new context concept approach, field research on the Trinidadian guppy is used as an appealing example of evolutionary change in populations. Pupils are asked to investigate the underlying mechanisms. In doing so, defects in their knowledge are revealed, in particular the role of meiosis in creating genetic variation. The reason for these…