Diffusion and osmosis are central concepts in biology, both at the cellular and organ levels. They are presented several times throughout most introductory biology textbooks (e.g., Freeman, 2002), yet both processes are often difficult for students to understand (Odom, 1995; Zuckerman, 1994; Sanger "et al.", 2001; and results herein). Students…

Just-in-Time Teaching (JiTT) combines the best features of traditional in-class instruction with the communication potential available via the Web. We describe here how JiTT has been used in Biology Education and how it can be used in Food Science Education. JiTT uses Web-based "Warm Up" assignments due before class to stimulate critical thinking…

The candle burning experiment is usually conducted in lower secondary classes to prove the (about) 20% oxygen in air. The aim of this paper is to show that teachers misinterpret the results of the experiment to satisfy the objectives of teaching this experiment. However, when the results of this experiment are interpreted correctly, the objectives…

If there was one theme essential to the historical scholarship of Stanford professor Susan Moller Okin, it was the oppression of females. In imbuing political theory with feminism, Okin wrote, for instance, that modern American women are "second-class" citizens in a society where biological differences should count for nothing. Such declarations…

This paper examines the problem of delivering a body of knowledge based on biomedical research as a school physical education discourse. The paper attempts to deconstruct the ideology of healthism upon which the discourse is based in order to show how ascetic practices in school physical education are promoted as a way of combating the hedonistic…

Unquestionably, rural schools face many obstacles in their attempts to attract teachers. However, a survey of preservice teachers working in rural districts found that many of these obstacles stem from misconceptions or a lack of knowledge about what it means to live and work in a rural area. Perception, however, is reality and therefore deserves…

Enzyme kinetics is a difficult subject for students to learn and for tutors to teach. During the practicals included in the biochemical courses at the Faculty of Chemistry of Universidad Nacional Autonoma de Mexico, we found that the students acquire good training in the calculations to obtain kinetic parameters such as K[subscript m], V[subscript…

The undermining effect of extrinsic reward on intrinsic motivation remains unproven. The key unresolved issues are construct invalidity (all four definitions are unproved and two are illogical); measurement unreliability (the free-choice measure requires unreliable, subjective judgments to infer intrinsic motivation); inadequate experimental…

Plato wrote that higher order thinking could not start until the student had mastered conventional wisdom. The American educational establishment has turned Plato on his head with the help of a dubious approach to teaching developed by one Benjamin Bloom. Bloom's taxonomy was intended for higher education, but its misappropriation has resulted in…

The purpose of this study is to investigate the effects of the Engagement, Exploration, Explanation, Extension, and Evaluation (5E) learning cycle, conceptual change texts, and traditional instructions on 8th grade students' understanding of photosynthesis and respiration in plants. Students' understanding of photosynthesis and respiration in…

Although all of us must teach against the text at times, I find myself doing this most often when teaching about qualitative methods in the context of a general introductory methods course. Myths about the nature and practice of qualitative research are both embedded in the folklore of mainstream sociology and supported by the textbooks that we…

Cabri3D is a potentially very useful software for learning and teaching 3D geometry. The dynamic nature of the digital diagrams produced with it provides a useful aid for helping students to better develop concept images of geometric concepts. However, since any Cabri3D diagram represents three-dimensional objects on the two dimensional screen of…

Geography is at once described as valuable and misunderstood. Its continued place in the curriculum arguably depends on reconciling these contrasting perceptions, and ensuring that curriculum decisions are based on realistic assumptions. This includes students' assumptions about the subject. This research employed synergetic focus groups to…

In his assessment of the current state of e-book technology, David Rothman illustrates the value of e-books for educators, accounts for why the technology has not been more widely embraced, and discusses new developments that suggest a better future for e-books. For educators, particularly distance educators, e-books hold great potential to…

Research suggests that the relief (substitute) teacher should be viewed as an extremely important educational resource. Reviewed literature spanning the better part of twenty years indicates that in parts of Australia, the United Kingdom and the United States, many students spend as much as one full year (or more) of their K-12 education having…