Although there are increasing numbers of professional development (PD) materials intended to foster teachers' mathematical knowledge for teaching within the topics of number and algebra, little attention has been given to geometry. In this article we describe the Learning and Teaching Geometry project's approach to the development of PD materials…

Cultural boundaries are no longer geographically dictated. This intercultural music making initiative made provision for the social cohesion of the North-West University, South Africa Tswana students as they prepared musical artefacts for "export" that convey, confirm and explore their culture of birth. Advancement in emerging digital…

Cognitive approaches have been used for student modeling in intelligent tutoring systems (ITSs). Many of those systems have tackled fundamental subjects such as mathematics, physics, and computer programming. The change of the student's cognitive behavior over time, however, has not been considered and modeled systematically. Furthermore, the…

Research strongly suggests that visual supports, such as pictures, prompts, cue cards, story boards, graphic schedules, and diagrams, have been effective for providing instructional structure for a wide variety of children and for multiple activities. Making successful transitions from one activity to another is difficult for many children,…

Recent research has shown that certain learners' responses to feedback, specifically repair and modified output, are predictive of subsequent second language (L2) development. Yet, little is understood about why these responses are associated with second language acquisition (SLA). The current study investigated this question by exploring the…

Recorded footage of counselling sessions with real clients can be a valuable educational resource that gives training counsellors the opportunity to analyse the theories and practices they encounter in their education. However, the use of such material raises complex ethical issues: what are the safeguards against the misuse of the material? Can…

One issue of interest to practitioners and researchers in science centres concerns what meanings visitors are making from their interactions with exhibits and how they make sense of these experiences. The research reported in this study is an exploratory attempt, therefore, to investigate this process by using video clips and still photographs of…

In this article, the author describes the Jazz Workshop, a unique blend of collaboration and constructivist learning using videoconferencing and Web 2.0 tools. Each summer it draws about 400 participants--mostly teachers, technology facilitators, teacher librarians, and videoconferencing coordinators--who convene in 20 locations across three…

Two studies are reported which investigate delayed video self-recognition (DSR) in children with autistic disorder and Asperger's disorder relative to one another and to their typically developing peers. A secondary aim was to establish whether DSR ability is dependent on metarepresentational ability. Children's verbal and affective responses to…

Aims: To assess the effectiveness of a digital-story intervention (short videos made by young people) seeking to reduce the prevalence of young people's binge drinking in Caerphilly. Method: A quasi-experimental design was adopted with three intervention sites and one control site providing the sample (mainly aged 14-15 years). Three rounds of…

We examined the effects of individualized video modeling on the accurate implementation of behavioral interventions using a multiple baseline design across 3 teachers. During video modeling, treatment integrity improved above baseline levels; however, teacher performance remained variable. The addition of verbal performance feedback increased…

Despite their experiences with a cartoon sponge, most elementary students know little about the diverse inhabitants of coral reefs. Therefore, with vivid photography and video, diverse coral reef inhabitants were brought to life for the author's fifth-grade students. Students shared their knowledge in language arts and even explored coral reefs in…

Changing mass phenomena like the motion of a falling chain, the behaviour of a falling elastic bar or spring, and the motion of a bungee jumper surprise many a physicist. In this article we discuss the first phase of bungee jumping, when the bungee jumper falls, but the bungee rope is still slack. In instructional material this phase is often…

In two studies we investigated 2-year-old children's answers to predicate-focus questions depending on the preceding context. Children were presented with a successive series of short video clips showing transitive actions (e.g., frog washing duck) in which either the action (action-new) or the patient (patient-new) was the changing, and therefore…

This paper discusses the results of field research focused on educational communication in the classroom. The research involved 11 primary schools in Italy. Nearly 100 hours of videotaped educational interactions were produced. The empirical analysis of the communication processes allowed us to analyse the main structures of educational…