On Mario Bunge’s Definition of System and System Boundary

In this short paper we discuss Mario Bunge's definition of system boundary. It is quickly discovered that Bunge's definition of system and system boundary are both deficient. We thus propose new definitions, which (hopefully) improve the situation. Our definition of system boundary works off the same intuition behind Bunge's.     

A cross‐sectional study of prosodic sensitivity and reading difficulties

In this cross‐sectional study, we explore the relationship between prosodic sensitivity (suprasegmental phonology) and phonological awareness (segmental phonology) and investigate whether a group of poor readers display significant suprasegmental phonological deficits in comparison to chronological age‐matched controls and younger, reading age‐matched controls. Phonological awareness assessments were administered along with a battery of prosodic sensitivity assessments drawn from recent literature. The results showed that poor readers were outperformed by their chronological age‐matched counterparts on all measures of prosodic sensitivity. A significant main effect of group was found on the revised stress mispronunciations task and the stress assignment task from the prosodic assessment battery, the former of which remained even after controlling for individual differences in receptive vocabulary and measures of phonological awareness. Significant relationships were also found between measures of prosodic sensitivity and phonological awareness (especially phoneme awareness). These findings emphasise the importance of both segmental and suprasegmental phonological skills in children's reading development.     

Investigating teachers’ explanations for aggressive classroom discipline strategies in China and Australia

Student misbehaviour can provoke aggressive teacher management (e.g. yelling in anger), adversely effecting students’ learning and attitudes toward school. To investigate this phenomenon, data were obtained from 75 Chinese (typically Eastern) and 192 Victorian (typically Western) secondary teachers who self-reported aggressive management. Results: 49% of Chinese and 59% of Australian teachers adopt aggressive behaviours rarely to sometimes; and, 9% of Chinese and 13% of Australian teachers sometimes or more frequently. The teachers were assessed for levels of support for Attribution, Attachment or Efficacy theory as explanations. The only significant differences were found for Attachment theory with Chinese teachers reporting significantly more support. National setting explained 29% of the variance independent of gender, levels of aggression and years of experience.     

Comparison of online and classroom-based student evaluations of instruction

In recent years, colleges have been moving from traditional, classroom‐based student evaluations of instruction to online evaluations. Because of the importance of these evaluations in decisions regarding retention, promotion and tenure, instructors are justifiably concerned about how this trend might affect their ratings. We recruited faculty members who were teaching two or more sections of the same course in a single semester and assigned at least one section to receive online evaluations and the other section(s) to receive classroom evaluations. We hypothesised that the online evaluations would yield a lower response rate than the classroom administration. We also predicted that there would be no significant differences in the overall ratings, the number of written comments, and the valence (positive/neutral/negative) of students’ comments. A total of 32 instructors participated in the study over two semesters, providing evaluation data from 2057 students. As expected, online evaluations had a significantly lower response rate than classroom evaluations. Additionally, there were no differences in the mean ratings, the percentage of students who provided written comments or the proportion of comments in the three valence categories. Thus, even with the lower response rate for online evaluations, the two administration formats seemed to produce comparable data.     

Buying-out teaching for research: the views of academics and their managers

This paper reports on the practice of buying-out teaching to create time for research. A study was carried out, at a regional university in Australia, with academics in receipt of research grant funds (and therefore with the means to buy out teaching), Heads of School, and the Deputy Vice Chancellors responsible respectively for research and for academic matters. We found that while eligible academics did buy out teaching by employing casual staff, most of them worried about the potential effects on teaching quality and students’ learning. Heads of School were more sanguine about possible effects on teaching. Decision making by academics about whether to buy out teaching, and by Heads of School about whether to allow it in particular cases, took account of a number of factors. Some teaching activities were seen as higher-risk than others for buying-out. It was uniformly recognised by all parties that buying-out did not result in complete relief from the teaching activity that was bought out; a great deal of time and energy needed to be invested by the academic in making appropriate arrangements and monitoring the quality of work undertaken by the casual staff. The paper suggests that clearer policies need to be instituted in this area; academics were unsure what buying-out was allowed or acceptable, and would benefit from more discussion of the practice.     

Considering ‘teacher resilience’ from critical discourse and labour process theory perspectives

This article considers the construct of ‘teacher resilience’ from critical discourse and labour process perspectives in order to cast new light on what has been traditionally viewed from a psychological perspective. In this respect, the construct of resilience is placed in the broad political landscape of teachers’ work and the labour process of teaching, within a neoliberal globalised economic paradigm. Importantly, this article argues that any conceptualisations of teacher resilience should be critically appraised and not simply ‘taken for granted’. While the concept of developing ‘teacher resilience’ as a means, for example, of addressing alarmingly high rates of early career teacher attrition may sound like a good idea, it is important to consider the way such constructs can be used to shape and potentially control teacher identity and the nature of teachers’ work.     

Young adults and everyday-life information: The role of news media

There is a paucity of research examining the everyday-life information seeking of young people, especially investigating the role that the news media has in providing information to young people for use in their everyday lives. A qualitative, interpretivist approach is adopted, involving 34 students, ages 18 to 25, from an Australian university. First, 20 students were interviewed about their news seeking (including topics and sources). Then 14 students participated in verbal protocol analysis, which involved a series of tasks concerning online and print newspapers. Lastly, students were interviewed about how they sought everyday-life information and whether they thought that they had incidentally acquired or encountered information on everyday-life topics in online or print newspapers in the recent past. Findings indicated that, contrary to expectations, traditional print media still played a role for young people, and social media were perceived as important for communication with friends, rather than for news gathering. Purposeful information seeking was more likely to occur online, but both print and online newspapers retained an incidental role in providing information to students for their everyday lives. Participants used a range of media to suit their particular needs and purposes. Thus, access to a wide variety of sources is important for everyday-life information seeking (ELIS) by young people.     

Gateway finder in large graphs: problem definitions and fast solutions

Given a graph, how to find a small group of ‘gateways’, that is a small subset of nodes that are crucial in connecting the source to the target? For instance, given a social network, who is the best person to introduce you to, say, Chris Ferguson, the poker champion? Or, given a network of people and skills, who is the best person to help you learn about, say, wavelets? We formally formulate this problem in two scenarios: Pair-Gateway and Group-Gateway. For each scenario, we show that it is sub-modular and thus it can be solved near-optimally. We further give fast, scalable algorithms to find such gateways. Extensive experimental evaluations on real data sets demonstrate the effectiveness and efficiency of the proposed methods.     

Comparing technology-related teacher professional development designs: a multilevel study of teacher and student impacts

This article presents a quasi-experimental study comparing the impact of two technology-related teacher professional development (TTPD) designs, aimed at helping junior high school science and mathematics teachers design online activities using the rapidly growing set of online learning resources available on the Internet. The first TTPD design (tech-only) focused exclusively on enhancing technology knowledge and skills for finding, selecting, and designing classroom activities with online resources, while the second (tech?+?pbl) coupled technology knowledge with learning to design problem-based learning (PBL) activities for students. Both designs showed large pre-post gains for teacher participants (N?=?36) in terms of self-reported knowledge, skills, and technology integration. Significant interaction effects show that teachers in the tech?+?pbl group had larger gains for self-reported knowledge and externally rated use of PBL. Three generalized estimating equation (GEE) models were fit to study the impact on students?? (N?=?1,247) self reported gains in behavior, knowledge, and attitudes. In the resulting models, students of tech?+?pbl teachers showed significant increases in gain scores for all three outcomes. By contrast, students of tech-only teachers showed improved gains only in attitudes.