Full shadows, partial shadows and multilayer shadows are explained based on the phenomenon of the linear dispersion of light. This paper focuses on progressing the understanding of shadows from physical and mathematical perspectives. A significant relationship between light and color pigments is demonstrated with the help of the concept of sets.…

This paper looks at the case of moral philosophy in order to assess the extent to which and ways in which teacher education should respond to the liberal principle of justification. This principle states that moral and political decisions made by citizens with special kinds of influence and other coercive powers should be accountable to other…

Practical solid state diodes and transistors have made glass valve technology nearly obsolete. Nevertheless, valves survive largely because electric guitar players much prefer the sound of valve amplifiers to the sound of transistor amplifiers. This paper discusses the introductory-level physics behind that preference. Overdriving an amplifier…

This teaching tip showcases how students use iPads to video record themselves orally reading. In the Record, Listen, Reflect process, students conduct repeated readings with a familiar text, watch the recorded video, and conduct running records on themselves. Having an opportunity to watch videos of their own reading gives students a glimpse of…

Connecting ordinary devices to the Internet is a defining characteristic of the Internet of Things. In this hands-on lab activity, students will connect a wireless doorbell to the Internet using a Raspberry Pi computer. By modifying and running a program on the Raspberry Pi to send an email or text message notifying a recipient that someone is at…

This article considers the oeuvre of Xenophon (c.430-354 bc) as providing an insight into the concept of "care of the self" in Greek education. In many of his works the leading characters are men who take care of themselves through education. Addressing the theme of "fathers and sons," Xenophon aimed to show that "care of…

Universal Design applied to college instruction has evolved and rapidly spread on an international scale. Diffusion of Innovation theory is described and used to identify patterns of change in this trend. Implications and strategies are discussed for promoting this inclusive approach to teaching in higher education.

Although there has been a call for the reconceptualization of modern-day physical education, team sports continue to dominate the physical education curriculum landscape. With less time being devoted to physical education than ever before, physical educators must carefully choose which units of instruction they will present to their students. For…

Children's literature offers many benefits to children, which include developing imagination, building knowledge, enhancing vocabulary, and offering pleasure. As it promotes these areas of development, literature can also serve as a gateway for curriculum integration. Literature can be a particularly powerful tool in executing a dynamic,…

As teachers are increasingly asked to respond to assessment and evaluation demands in their schools, the aim of this article is to provide suggestions and scales for singing accuracy. A description of each step in the assessment design process is provided, along with specific suggestions for a singing development scale and a singing accuracy scale.

Objective: This pilot study assessed an electronic health diary method designed to collect data about critical health incidents experienced by college students who have chronic health conditions. Participants: Nine university students with chronic medical conditions were recruited to complete a series of e-mail-based surveys, sent once every…

In this afterword we bring insights from the special issue into conversation with the ongoing educational challenges of imagining the world differently. To do so, we consider how global mobilities are conceptualized and materialized within three "pillars" of the architecture of modern existence: the nation-state, global capital, and…

This article is interesting in ostensive forms of two physical education (PE) teachers within the activity of Swimming in Tunisia. Its objective is to analyze the ostensive forms of PE teachers and to extricate their effects on the relationship to knowledge. The methodology of the research is qualitative. It subscribes in the field of didactic…

In the United States, there's a national infatuation with those who have broken barriers--racial, religious, gendered, and so on--and have presumably changed the rules of the game for others. News outlets and history textbooks seem unable to resist a good story of "firstness." Researchers have speculated why this is the case: What better…

There is an expectation that all researchers will act ethically and responsibly in the conduct of research involving humans and animals. While research ethics is mentioned in quality indicators and codes of responsible researcher conduct, it appears to have little profile in doctoral assessment. There seems to be an implicit assumption that…