An activity has been designed for the purpose of teaching how light is dispersed in a straight line and about the interaction between matter and light as well as the related concepts of shadows, partial shadows, reflection, refraction, primary colours and complementary (secondary) colours, and differentiating the relationship between colours, all…

A common learning goal for modern physics instructors is for students to recognize a difference between the experimental uncertainty of classical physics and the fundamental uncertainty of quantum mechanics. Our studies suggest this notoriously difficult task may be frustrated by the intuitively "realist" perspectives of introductory…

The interaction between light and matter is examined with the help of a photochemical experiment. This experiment is useful for the investigation of heterogeneous catalysis, semiconductor properties and adsorption phenomena.

The mouth has naturally been an important tool for human existence. For example, the food we eat goes through the mouth to venture into our digestive system and the words we say come out of our mouths as we communicate with others. To elucidate my discourse, I focus on the latter as a tool that matters in most of our human activities, especially…

What guides, in ethical terms, our teaching and research in physical education teacher education (PETE)? This is hard to say, because, by and large, the literature in this field has not addressed this question. To shed some light on this matter, in this paper (a) I analyze some reasons for this lack of analysis; (b) I draw from well-known…

The multiple mechanisms of entrepreneurial intention are still an open issue, and few have explored whether the relationship between entrepreneurial intention and proactive personality is influenced by entrepreneurial passion. This study aims to reveal the mediation role of entrepreneurial passion between proactive personality and entrepreneurial…

It is our contention that we are in a crisis of curriculum that can be seen from calls to defund public education to the reduction of children to scores on annual assessments. We also point to a crisis in studies of curriculum that the critical tools necessary to consider and critique curricular practices have been intentionally removed from…

Provides a detailed, non-mathematical analysis of total internal reflection based on the interaction of light and matter and the principle of superposition. Discusses factors affecting the critical angle and the percent of the incident beam that is refracted and reflected. (JM)

This study examined the relationships between kindergartens teachers' emotional labour strategies and their relations to instructional leadership, trust in colleagues, teaching experiences, and teaching satisfaction. With a sample of 491 kindergarten teachers in Hong Kong, this study found that surface acting negatively predicted while deep acting…

Data from the 2017 National Youth Risk Behavior Surveillance System, consisting of 14,765 students, ranging in age from 12 to 18 years, were used to investigate patterns of cyberbullying victimization, with particular focus on understanding the interplay between traditional bullying victimization and other relevant predictors of cyberbullying.…

This article draws on Philip Barnard's model of the interactions between theory and practice, between basic and applied research, to investigate the paradox of reading as an experience both private and public. It uses internal reader experience as a starting point for exploration, evoking the concept of a readerly sense of presence as a selection…

Ethnic hierarchies, that is, hierarchical representations of ethnic groups, are typical for multiethnic societies. However, little is known about whether pupils elicit such hierarchies and whether these hierarchies vary with respect to the pupils' ethnicity. This awareness may shed light on whether and to what extent pupils perceive particular…

Written for students, professionals with limited experience, and professionals who encounter lighting difficulties, this book encourages sensitivity to light in its myriad manifestations: it offers advice in creating memorable images for video, film, and stills through lighting. Chapters in the book are: (1) "Lights of Passage: Basic Theory and…

Presents three absorption line sources that enhance student understanding of the phenomena associated with the interaction of light with matter and help dispel the misconception that atoms "emit" absorption lines. Sources include neodymium, food coloring and other common household liquids, and fluorescent materials. (MDH)

We calculate the frequency of matter-wave of electrons orbiting the hydrogen nucleus at the ground state. It is the same as the value of light frequency corresponding to the ground state from the Rydberg's formula. The result will stimulate students' interest to further understand the mechanisms of quantum theory.