Identity formation of teacher–mentors: An analysis of contrasting experiences using a Wengerian matrix framework

In order to understand the process of identity formation in a community of practice, Wenger (2002) proposes a matrix framework whereby three qualities (connectedness, expansiveness and effectiveness) are matched against three modes of belonging (engagement, imagination and alignment). In this paper we use this framework to analyse the experiences of two teacher–mentors and interpret how their identities are formed during the process of mentoring student–teachers. Factors that contribute significantly to the development of their identity include the school culture, the ‘personalities’ of the other community members, and the influence of other relevant communities of practice.     

The impact of three‐dimensional computational modeling on student understanding of astronomy concepts: a qualitative analysis

In this study, we explore an alternate mode for teaching and learning the dynamic, three‐dimensional (3D) relationships that are central to understanding astronomical concepts. To this end, we implemented an innovative undergraduate course in which we used inexpensive computer modeling tools. As the second of a two‐paper series, this report focuses on the qualitative differences of students' understandings of both spatial and declarative knowledge domains as reflected by their two distinct learning environments — a traditional astronomy classroom and an experimental astronomy course grounded in problem‐solving and modeling with dynamic, 3D, computational modeling software. We found that students who constructed 3D computational models tended to have a more scientifically sophisticated understanding of dynamic spatial relationships, whereas students in the traditional class developed more accurate understandings of the properties and general facts and figures regarding celestial bodies.     

The impact of three‐dimensional computational modeling on student understanding of astronomical concepts: a quantitative analysis

The increased availability of computational modeling software has created opportunities for students to engage in scientific inquiry through constructing computer‐based models of scientific phenomena. However, despite the growing trend of integrating technology into science curricula, educators need to understand what aspects of these technologies promote student learning. This study used a multi‐method research approach involving both quantitative (Paper 1) and qualitative data (Paper 2) to examine student conceptual understanding of astronomical phenomena, relative to two different instructional experiences. Specifically, based on students' understandings of both spatial and declarative knowledge, we compared students who had constructed three‐dimensional computational models with students who had experienced traditional lecture‐based instruction. Quantitative analysis of pre‐interview and post‐interview data revealed that construction of three‐dimensional models best facilitated student understandings of spatially related astronomical concepts — whereas traditional instruction techniques best facilitated student understandings of fact‐oriented astronomical knowledge. This paper is the first in a two‐paper set that continues our line of research into whether problem‐based courses such as the Virtual Solar System course can be used as a viable alternative to traditional lecture‐based astronomy courses.     

The associative field as a diagnostic instrument in assessing the breadth of multi‐contextual concepts: the concept ‘development’

A free‐association approach was used to identify the connotative meanings of the concept ‘development’ in respondents' cognitive structure. The study was carried out at three levels in schools (6th, 9th and 11th grades) and in comparison with groups of student‐teachers and teachers of biology. Analyses of subjects' association‐spectrum revealed a paucity of multi‐contextuality, indicating a non‐inclusive concept‐formation. The great majority of subjects' associations referred to biology only. This was especially so in first (when compared with residual) associations. A very large proportion of subjects did not differentiate between the concepts of ‘development’ and ‘growth’. Most biological associations of ‘development’ referred to ontogeny, with very few phylogenetical associations.     

Affordances of using Multiple Videoed Events to construct a rich understanding of adult–child book readings

This paper explores the affordances of using video-based research to capture a multiplicity of events, along with multimodal representations when producing data related to adult–child book readings. In doing this we answer two questions: (1) why more than one event is needed when seeking a comprehensive collection of information for the purpose of analysis; and (2) why one mode of data production alone (e.g. audio recordings or note taking) is insufficient to record practice or interviews when richness is of priority. This research used three videoed events to produce data. These included videoing: (1) caregiver–child interactions during four shared book reading sessions, (2) interviews with caregivers immediately following each of the reading sessions and (3) video-stimulated discussions with caregivers within two months of the final shared book reading. In this paper, I contribute to discussions that highlight the affordances of using video-based research as a means of capturing the multimodal elements of an experience, which can contribute to the analysis and interpretation of data. I expand on this, however, to suggest that when coupled with a multiplicity of events, video-based research can be a means of pursuing richness via a method that has been criticized for its narrow subjectivity.     

An international comparison using a diagnostic testing model: Turkish students’ profile of mathematical skills on TIMSS-R

This study illustrates how a diagnostic testing model can be used to make detailed comparisons between student populations participating in international assessments. The performance of Turkish students on the TIMSS-R mathematics test was reanalyzed with a diagnostic testing model called the Rule Space Model. First, mathematical and cognitive skills (‘attributes’) measured by the test were determined. One hundred sixty-two items were coded in terms of their attribute involvement, creating an incidence matrix—the Q-matrix. Using the Q-matrix and the student response data, each student’s attribute mastery profile was determined. Mean attribute mastery levels of Turkish students were computed and compared to those of their American peers. It was shown that Turkish students were weak in algebra and probability/statistics. They also demonstrated poor profiles in skills such as applying rules in algebra, approximation/estimation, solving open-ended problems, recognizing patterns and relationships, and quantitative reading.

‘Microsoft bought Minecraft … who knows what’s going to happen?!’: a sociocultural analysis of 8–9-year-olds’ understanding of commercial online gaming industries

This study investigates children’s media literacy with a specific focus on socially situatedness of children’s understanding of online gaming industries and related marketing. This article analyzes interviews with 8–9-year-olds and their parents in homes in the U.S.A. Rather than concentrating on developmental factors, the article uses a sociocultural approach to analyze various aspects of children’s gaming culture in domestic settings that relate to their understanding of gaming industries. The article considers implications for how children as consumers are understood by key stakeholders, including researchers and educators.