This paper reports on the types of problems that high-achieving students posed when given investigative tasks that were constructed by opening up some mathematical problems. A teaching experiment was conducted to develop the students' thinking processes during mathematical investigation, and each student was videotaped thinking aloud during a…

Part art and part science, a good video can be an incredibly powerful tool to connect with audiences. Video presents a tantalizing way for institutions to share compelling stories and connect with their constituents. Paired with the power of other tools, it can help reach new audiences and also more fully engage those people who already know an…

The use of a video camera may markedly improve demonstrations of optical spectra. First, the output electrical signal from the camera, which provides full information about a picture to be transmitted, can be used for observing the radiant power spectrum on the screen of a common oscilloscope. Second, increasing the magnification by the camera…

The process of learning new surgical technical skills is vital to the career of a surgeon. The acquisition of these new skills is influenced greatly by visual-spatial ability (VSA) and may be difficult for some learners to rapidly assimilate. In many cases, the role of VSA on the acquisition of a novel technical skill has been explored; however,…

By developing two case studies of expert teaching in action, this study aimed to develop knowledge of talk in whole-class teaching in UK primary science lessons and understand this in relation to both the teachers' interpretations and sociocultural theoretical frameworks. Lessons were observed and video-recorded and the teachers engaged in…

PowerPoint[R] presentations in academia have a reputation for being less than engaging in this era of learner-centered teaching. The Net Generation also presents a formidable challenge to using PowerPoint[R]. Although the research on the basic elements is rather sparse, the multimedia elements of movement, music, and videos have a stronger…

Digital oratory can be described as thesis-driven, vocal, embodied public address that is housed within (online) new media platforms (and that ideally takes advantage of the developing/flux-laden conventions that the online video context provides). This new form of public address lies somewhere between traditional speech-giving and media…

Outbreaks of violence at education institutions typically do not rise to the horrific levels of Virginia Tech, Columbine High School, or Oikos University. But incidents that threaten school security--bullying, hazing, online harassment--take place in every month of the year and may occur in any classroom or campus from coast to coast. Schools and…

This study compared younger (M = 53 months) and older (M = 90 months) children's use of linguistic referential devices to make a positive identification. Children were shown a 4-minute video that concluded with a wrongful act. They were interviewed 24 hours later and asked to identify the perpetrator of the wrongful act with open-ended and…

This study examined the effects of viewing a ten-minute model-reinforced video on careers information-seeking behaviour of 280 students in ten sections of a university careers course randomly assigned to treatment or control conditions. The video portrayed an undergraduate student seeking careers counselling services and a counsellor using…

The use of online lecture recordings as a supplement to physical lectures is an increasingly popular tool at many universities. This paper combines survey data with student record data for students in a "Microeconomics Principles" class to examine the relative effects of lecture attendance and online lecture recordings. The main finding…

This paper presents two methods that we applied to our research to record infant gaze in the context of goal-oriented actions using different eye-tracking devices: head-mounted and remote eye-tracking. For each type of eye-tracking system, we discuss their advantages and disadvantages, describe the particular experimental setups we used to study…

Five high-school chemistry teachers were asked to enact a lesson in which they posed a problem for which students were likely to generate solutions based on reasoning that was not aligned with accepted principles of chemistry. Four teachers selected a problem related to the stoichiometry of a reaction; the fifth chose a problem associated with…

This article reports on a study of how teenagers made their decision on whether or not to vaccinate themselves against the new influenza. Its purpose was to identify connections between how teenagers talk about themselves and the decision they made. How do the teenagers construct their identities while talking about a specific socio-scientific…

We tested associations among empathic responsiveness, attachment style, and vagal tone (a physiologic index of emotion regulation) in 103 mother-adolescent dyads. Dyads discussed positive and negative topics and then separately reviewed a videotape of the interaction and rated their own and the other person's affect at one-minute intervals. We…