The Program for International Student Assessment (PISA) is an international assessment that measures the performance of 15-year-olds in reading literacy, mathematics literacy, and science literacy. Coordinated by the Organization for Economic Cooperation and Development (OECD), an intergovernmental organization of 34 member countries, PISA was…

Online educational marketplaces have seen remarkable growth, but have had little empirical investigation of the quality of materials, particularly in social studies. This exploratory study examined characteristics and quality of secondary U.S. history resources on TeachersPayTeachers.com. Findings show that activities were esthetically…

Worldwide, a tendency is visible in which upper secondary science curricula are innovated in the direction of context-based education. Crucial to these innovations is the way teachers interact with newly developed teaching materials and implement them in classroom practice. The focus of our research is to identify characteristics of the…

This paper describes findings from a study to explore Singapore A-level (Grades 11 and 12, 16-19 yr old) students' understanding of ionisation energy, an abstract and complex topic that is featured in school chemistry courses. Previous research had reported that students in the United Kingdom commonly use alternative notions based on the perceived…