This paper reports an experimental study on Form Four (16 year olds) students' conceptions about two acid-base models (Arrhenius & Brønsted-Lowry). An intact class was divided into two groups that were taught different acid-base models. One teacher taught one of the groups the Brønsted-Lowry model while another teacher taught the Arrhenius…

This paper presents the design and development of a rubric for assessing mathematical modelling for mathematical modelling tasks at the secondary level. A rubric was crafted based on the mathematical modelling competencies synthesised by the researchers identified from four sources. The rubric was fine-tuned following an interview with three…

The purpose of this study is to develop teachers' orientations toward teaching science scale from an instructional perspective in a Thai context. The scale consisted of nine orientations with 54 items. The pilot data were collected from 125 secondary science teachers in Thailand and analysed by using the Rasch rating scale model with WINSTEPS…

Perceiving (such as seeing) and representing (such as drawing and talking about what one perceives) is fundamental to chemical education. The purpose of this study was to gain further insights and understanding into selected students' representational competence in chemistry through student-generated representations (SGR). In the mixed model…

The aim of this study is to examine secondary school students' images and conceptualisations about scientists by contextual data analysis, and to determine relationships between them. The respondents were 356 students attending 6th and 7th grades of secondary school in Duzce. Tests were conducted during 2013-2014 academic year. Students' images…

This paper reports an innovative approach to teaching problem solving in secondary school mathematics classrooms based on a specifically designed problem-solving module.This approach adopts the science practical paradigm and rides on the works of Polya and Schoenfeld in order to give greater emphasis to the problem solving processes. We report the…

Developing representational competence early in chemistry education is important. However, research to uncover students' difficulties with representational competence of basic chemical concepts in the early years of their chemistry course is scarce. The purpose of this study was to investigate and identify these difficulties. A total of 384…

Students in 12 secondary schools in three states of Malaysia were taught to use worksheets on the chemical kinetics topic which had been pre-created using the MS Excel worksheets. After the teaching, an opinion survey of 612 Form Six students from these schools was conducted. The results showed that almost all the students felt that MS Excel…

The fundamental philosophy embedded in lesson study is the collaborative practice of teachers working together to plan, teach, observe, reflect and refine lessons. It has been well established that collaboration strengthens teacher collegial relationships and enhances pedagogical content knowledge. While teacher collaboration seems to be a norm in…

The study involved evaluating the efficacy of a conceptual change instructional programme involving cognitive conflict in (1) facilitating form 2 (grade 8) students' understanding of algebra concepts, and (2) assessing changes in students' attitudes towards learning mathematics, in a mixed quantitative-qualitative research design. The…

This paper reports the relative effectiveness of Smart and Mainstream schooling in terms of student achievement in science. The participants comprised 770 secondary school Form 3 (15-year-old) students from two Smart Schools and two Mainstream Schools in Malaysia. Using students' Standardised National Examination (SNE) primary-school science…

This study investigated the thinking styles of high achievers and normal achievers and examined whether the thinking styles based on Sternberg's (1988, 1997) theory of mental self-government could predict their achievement in science. The sample consisted of 145 high achievers in Year 7 classes from a Science school and 242 normal achievers in…

Technology has become a major force in developing curricula and educational practice in mathematics education internationally. While many technologies are important in affluent developed countries, the hand-held calculator continues to be the technology most likely to be available to students when and where they need it. Modern calculators have…

Purpose: This study examines students' approaches towards learning university-level mathematics and how a technology-enhanced environment is received by the students transitioning from secondary to tertiary level mathematics. Method: The study was conducted in a private university in Malaysia, which provides an interactive virtual learning…

In this paper we demonstrate that "lesson study" may be adapted from its primary use as a professional development strategy for use as a research strategy, especially to identify principles of good lesson design. We report on a project undertaken in two Australian secondary schools where lesson study research was used to investigate the…