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…

The current study seeks to examine how teachers plan teaching sequences to teach chemical bonding in the senior secondary phase of schooling. The study employs a learning demand tool as interpretive framework. A mixed method was used to guide the collection of data. Data were collected through a survey instrument with 227 practising physical…

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…