Problems in Teaching the Topic of Redox Reactions: Actions and Conceptions of Chemistry Teachers

Although there is growing interest in studies of teachers' actions and conceptions, little is known about content-related teaching problems arising in science classrooms. This article presents a case study of problems which can occur when teaching the topic of redox reactions to Grade 11 students. Two chemistry teachers, a senior and a junior teacher, were involved in the study. Their reflective comments on the teaching problems were also investigated. Research data were obtained from classroom observations and audiotaped recordings of classroom practice. After the lessons, we conducted semistructured interviews with the teachers. The teaching problems are reported in terms of teaching activities causing difficulties for students in considering new conceptions to be necessary, intelligible, plausible, or fruitful. Analyses of the teachers' comments on these teaching activities clarifies a number of reasons why they acted as they did. It can be concluded that teachers' scientific expertise is an important source of difficulties when teaching redox reactions. Implications for an improvement of current chemistry classroom practice and content-related teacher training are offered.     

‘Should you turn this into a complete gender matter?’ Gender mainstreaming in medical education

The incorporation of a gender perspective in medical education aims toward better health, gender equity, and a better health care for both men and women. In this article, participants’ responses to a Dutch gender awareness‐raising project in medical education are discussed. Eighteen semi‐structured interviews were held with education directors and change agents. Resistance towards and obstacles for gender mainstreaming in medical education were implicit in four themes: (1) biomedical knowledge was perceived to be gender neutral, to which knowledge about women could be added to the body of knowledge either with or without framing them as gender issues; (2) the relevance of gender was unofficially denied by downplaying it, particularly in comparison with culture/ethnicity; (3) medical education’s social accountability was hardly mentioned and gender inequalities in health were framed as feminist political issues and not medical issues; and (4) we were urged to communicate carefully to increase acceptance and avoid overt resistance which situated gender inequalities outside the medical domain. Recommendations to change educational material were widely discussed; but specific features of gender were easily lost. This was especially true for power differences between men and women. Nevertheless, dominant systems of thought were challenged.     

Why and How We Made a Problem‐orientated A V Teaching Unit for Chemistry Students

An audiovisual (video) teaching unit on the chemical laboratory technique ‘recrystallisation’ was developed along problem‐solving rather than didactic lines, on the basis of observation and analysis of student behaviour in the laboratory. The research indicates that, in determining the content of a teaching unit, it may sometimes be very sensible to ignore the opinions of specialists (the teachers), who may wish merely to present a unique ideal method’ for a technique, without making clear the reasons for certain steps in the prescribed procedure. It is important for students to learn from which viewpoints decisions were made in the development of a chemical procedure. In the teaching unit devised, students are challenged to discover their own method, guided step by step through the conflicting opinions of teaching assistants and fellow students.     

How is gender integrated in the curricula of Dutch medical schools? A quick‐scan on gender issues as an instrument for change

Medical education has not taken on board the growing awareness of sex and gender differences. A nation‐wide project to incorporate sex and gender in medical education aims to establish longitudinal gender and sex specific curricula in all Dutch medical schools that move beyond sex and gender differences in reproduction. A baseline assessment was necessary to gain an overview on the state of the art of sex and gender in Dutch medical curricula and on the courses that were suitable to integrate sex and gender differences. A quick‐scan demonstrates that sex and gender differences beyond reproduction are mostly ignored. Results have been used to create the necessary commitment of policy‐makers in all Dutch faculties to take further steps towards establishing longitudinal gender‐specific medical curricula.     

The particulate nature of matter in science education and in science

This article addresses ideas about the particulate nature of matter that are considered to be correct or acceptable in science education and studies of children's misconceptions. It argues that science teachers and educators use educational as well as scientific criteria for correctness, and that these criteria do not always coincide. Relations between the particulate nature of matter in science and science education are analyzed in an attempt to make more intelligible children's inclination to attribute all kinds of macroscopic properties to particles. © 1996 John Wiley & Sons, Inc.