We used a sequential synthesis problem to investigate novice teachers' conceptual difficulties in hydrodynamics. Twenty-one new secondary level physics teachers from various regions of China, who had been in service for no more than 2 years, participated in the study. Each participant completed a written hydrodynamics problem consisting of four…

The inclusion of "nature of science" (NOS) in science education has for a long time been regarded as crucial. There is, however, a lack of research on appropriate NOS aspects for different educational levels. An even more neglected area of research is that focusing on teachers' perspectives on NOS teaching at different levels. The aim of…

This article describes features of NAUTeach, a secondary mathematics teacher preparation program that is modeled on the UTeach program at the University of Texas-Austin. NAUTeach is a research-based STEM program that develops the next generation of mathematics and science teachers by engaging them in rigorous content and methodology coursework…

In the context of a weeklong summer professional development program focused on climate change education, we conducted a qualitative case study investigating how science educators' understandings of learning progressions (LPs) informed their ideas about climate change teaching practice. Participants (N = 27) in the Climate Academy were middle…

The purpose of this study was to find out teachers' preferred teaching sequence for basic chemistry topics in Physical Science in South Africa, to obtain their reasons underpinning their preferred sequence, and to compare these sequences with the prescribed sequences in the current curriculum. The study was located within a pragmatic paradigm and…

This article illustrates an enhancement and lesson-delivery process used to engage classroom students in primary school science lessons. In the enhancement process, university educators and pre-service teachers collaborated with local experts to prepare lessons based in local or regional contexts. Lessons were designed to enable students to think…

Biochemistry education relies heavily on students' ability to visualize abstract cellular and molecular processes, mechanisms, and components. As such, biochemistry educators often turn to external representations to provide tangible, working models from which students' internal representations (mental models) can be constructed, evaluated, and…

This research study examined whether and how professional development can help teachers design sequences of instruction that lead to improved science learning. The efficacy of three professional development programs and a control condition was compared in a cluster randomized trial involving 53 middle school science teachers from a single school…

The aim of this study was to analyse science teachers' language in the classroom within the context of explanation sequences, in order to determine the coherence of the explanations, and the opportunities presented for learners' exposure to the register of science. The study is framed by the concepts of semiotic mediation, register and coherent…