This paper reports on an exploration into difficulties in junior secondary science lessons taught through English in the largely Cantonese-speaking context of Hong Kong. The study was carried out by an educational linguist and a science education specialist working in collaboration, and identified difficulties through student questionnaires, interviews with teachers, and classroom observation. Understandings of genre based in systemic functional linguistics were used in conjunction with knowledge of the science curriculum to investigate these difficulties. Extracts from lessons and teaching materials on energy conversion are discussed, with additional reference to interviews and questionnaires. Analysis revealed the influence of teaching materials on coherence between curricular objectives and teacher discourse. In particular, complex description detracted from explanations, affecting student understanding of the lesson. Copyright ©2024 Elsevier.

Purpose: The purpose of this paper is to report the design and evaluation of an inter-university collaborative project entitled "Blended learning for building student-teachers' capacity to learn and teach science-related interdisciplinary subjects." The project is a response of the science education faculty of three Hong Kong tertiary institutes to the challenge of catering to the diversity of academic backgrounds among student-teachers. Design/methodology/approach: E-learning modules have been produced covering four content domains of science. These modules are designed based on the 5E learning model and are delivered to students using the learning management system provided by Moodle. The design of the modules is iterative, based on the evaluation of three consecutive rounds of trials through student surveys, and focus group interviews with students and course lecturers. Findings: The evaluation findings indicate positive outcomes for certain attributes such as conceptual understanding, eagerness and confidence in learning science, and metacognitive reflection on students' own learning. There are challenges to be met in relation to instructional design to cater for the diversity of student abilities, and enhance motivation in self-directed learning. Practical implications: The project indicates the ways to develop students' basic science knowledge in a mixed-ability setting through the design of self-directed e-learning modules blended with their major courses and possible measures to address the limitations of such design. Originality/value: The study represents a conscious effort for the science teacher education faculty of different universities to pull together to tackle a perennial teaching and learning problem. The findings provide important insights into possible ways to blend e-learning with face-to-face learning approaches to better cater to the needs of science learners with mixed abilities to prepare them for interdisciplinary teaching.
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This study uses hierarchical linear modeling to examine the influence of a range of factors on the science performances of Hong Kong students in PISA 2006. Hong Kong has been consistently ranked highly in international science assessments, such as Programme for International Student Assessment and Trends in International Mathematics and Science Study; therefore, an exploration of the factors that affect science performances of Hong Kong students can give a lens to examine how science education can be improved in Hong Kong and other countries. The analyses reveal that student backgrounds as male, at higher grade levels, and born in mainland (when in the same grade) are associated with better science performance. Among the attitudinal factors, enjoyment of science and self-efficacy in science play important roles in scientific achievements. Most of the parental factors, on the other hand, are not having significant impacts on achievement after student attitudes are taken into account, with only parents' value of science having a small effect. School student intake is found to be a strong predictor of school average achievement, as well as a major mediator of the effects of school enrollment size and school socio-economic status. The findings differ from recently reported results, which suggested that school enrollment size was associated with achievement. This study also points out the problems of the use of science instruction time as a school-level variable to explain science achievement in Hong Kong.
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http://dx.doi.org/10.1080/09500693.2013.879223]