Teaching chemical bonding using the octet rule as an explanatory principle is problematic in many ways. The aim of this case study is to understand the learning and teaching of chemical bonding using a research-informed teaching model in which chemical bonding is introduced as an electrostatic phenomenon. The study posed two main questions: (i)…

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…

The purpose of this descriptive study was to examine teacher instructional dilemmas and opportunities that emerged when students worked with interactive computer-based simulation models during the High-Adventure Science (HAS) project. The intervention included the HAS digital curriculum, designed for grades 7-12. Each curricular unit was framed to…

This study investigated Iranian high school teachers' conceptions of effective teaching and examined the relationship of those conceptions to their teaching practices. The authors tried to achieve the purpose through questionnaires, observation, and interview. These teachers identified "being student-focused" and "being…

This paper investigates Language models with an emphasis on an appraisal of the Competence Based Language Teaching Model (CBLT) employed in the teaching and learning of English language in Cameroon. Research endeavours at various levels combined with cumulative deficiencies experienced over the years have propelled educational policy makers to…

Background: This study was grounded in the differentiated instructional model where teachers tailor content, process/support, and product in response to their students' levels of readiness and interest. The value of differentiated teaching is well established; however, the implementation of such a technique is difficult due to differences in…

At the end of primary school all children more of less know what a percentage is, but yet they often struggle with percentage problems. This article describes a study in which students of 13 and 14 years old were given a written test with percentage problems and a week later were interviewed about the way they solved some of these problems. In a…

Federal policy makers and school leaders increasingly recognize middle school math as a turning point in students' academic success. An i3 scale-up grant allowed grant partners to conduct a large-scale implementation of PowerTeaching (PT), a research-based reform to increase student math achievement. In a mixed-methods study during the pilot phase…

Background: Physical education has long been caught in a time of "innovation without change". Yet, despite a wealth of pedagogical innovations and policies, which encourage a reconsideration of the "traditional pedagogy", teachers rarely move beyond the honeymoon period of implementation. Purpose: The purpose of this paper is…

Teacher respect, important within culturally responsive practice, has seldom been explored in relation to mathematical pedagogy. Our study involving interviews, surveys, and lesson videos with Year 12 and 13 New Zealand mathematics students and teachers indicated specific pedagogical behaviours are important for demonstrating respect for students…

This article examines how three culturally relevant teachers in New York City public schools challenged the concepts of race and racism which low-income adolescents of color brought to the study of history and contemporary society. Framed by concepts of culturally relevant teaching and racial literacy, the study illustrated how the teachers used…

The purpose of this study is to investigate the effects of the case-based reasoning instructional model on learning about climate change unit. Results suggest that students showed interest because it allowed them to find the solution to the problem and solve the problem for themselves by analogy from other cases such as crossword puzzles in an…

Researches and educators' recognition of positive and negative effects of tests on teaching and learning activities goes back at least four decades. Although educators frequently claim that they do not want to teach to a test, the reality is that every educator wants his/her students to be successful. Decision makers, teachers, and students equate…

This article presents an overview of interest research and describes the theoretical and methodological background for the assessment of interest in science in large-scale assessments like the "Programme for International Student Assessment" (PISA). The paper starts with a short retrospective on the history of interest, bringing out theoretical…

The purpose of this article is to describe a study of the development of and changes in high school teacher identity through the collaborative professional learning community (PLC) model. Using Coldron and Smith's (1999) conceptual framework of teacher identity, being the craft, moral, artistic, and scientific traditions of teaching, a case study…