In this paper I propose a method of calculating the time between line captures in a standard complementary metal-oxide-semiconductor (CMOS) webcam using the rolling shutter effect when filming a guitar. The exercise links the concepts of wavelength and frequency, while outlining the basic operation of a CMOS camera through vertical line capture.

This study examined the efficacy of video self modeling (VSM) using feedforward, to teach various goals of a picture exchange communication system (PECS). The participants were two boys with autism and one man with Down syndrome. All three participants were non-verbal with no current functional system of communication; the two children had long…

Instructors frequently utilize breaching experiments in an attempt to "bring sociology to life." However, an uncritical embrace of breaching experiments obscures the complexity of their possible effects on participants and subjects. These experiments have real potential to inflict deleterious consequences on individuals and groups.…

This paper argues for an approach to mobile learning that leverages students' informal digital practices as resources for designing mathematics classrooms activities. We briefly describe two exploratory designs along these lines, one featuring the use of photos taken by students outside class and the other centered on their recording and…

Determining the reach of physical activity (PA) programs is challenging due to inconsistent reporting across studies. The purpose of this study was to document multiple indicators of program reach for a 6-month, Digital Versatile Disc (DVD)-delivered home-based PA program. Radio, newspaper and direct mailing advertisements were tracked to…

Purpose: Studying normal or disordered motor control requires accurate motion tracking of the effectors (e.g., orofacial structures). The cost of electromagnetic, optoelectronic, and ultrasound systems is prohibitive for many laboratories and limits clinical applications. For external movements (lips, jaw), video-based systems may be a viable…

Child maltreatment continues to occur at alarming rates, and while several interventions currently exist for use with parents to minimize the incidence of child maltreatment (Daro & McCurdy, 2007), many can be time consuming for service providers "and" consumers. One program, the Circle of Security (COS), lasts 20 weeks with weekly…

This paper demonstrates how the use of adequate descriptive feedback on assessment enhances the teaching, learning and academic performance of learners of auditing. Literature shows that this mode of feedback is transformative as it relies heavily on the particular, specific and localised learning styles of the individual learner. It also…

This study examines the effect of questions on fostering interaction in English as a Foreign Language (EFL) classrooms. It also seeks to determine the characteristics of questions that promote increased classroom interaction. Data were collected through video recordings of EFL classrooms which were analyzed using Discourse Analysis techniques.…

Despite numerous calls for science education to be driven by authentic investigation, many laboratory experiences continue to consist of disconnected weekly units during which students carry out instructions that lead to some predetermined finding. This study developed and evaluated a pedagogical design for introductory biology labs where students…

This research was conducted to explore whether students enrolled in graduate level courses found some Universal Design for Learning (UDL) strategies useful and if they actually used them. The strategies we investigated were presenting course information in alternative formats including PowerPoints with voiceover, screencasts, and videos as an…

This research examined how a teacher's discussion of the strands of scientific proficiencies changed over the course of an inquiry cycle as students engaged in a complex, technology-enhanced inquiry learning environment called "PlantingScience" (PS). Our research is descriptive in nature and attempts to deconstruct the complexity of…

The aim of this study is to analyze the effect of meaning making based instruction regarding angular momentum conservation on the change of two 11th grade students' alternative ideas they have before instruction. Case study model is used in the research. Conceptual test (implemented before the instruction, right after the instruction and fifteen…

Diversity courses in higher education often seek to deepen understanding of the systematic advantages associated with dominant group membership, such as white privilege. Most pedagogical studies of privilege awareness examine the impact of full-length diversity courses on white privilege awareness (Case, 2007; Kernahan & Davis, 2009; Lawrence…

Willingness to communicate (WTC) in a second language class has been shown to be transient and situation-dependent. Previous studies mostly elicited data from learners' self-reports through interviews or diaries, and the data analyses were largely confined to the medium of language, marginalizing other semiotic resources such as gesture or…