Being, becoming and belonging: Some thoughts on academic disciplinary effects

In this paper I reflect on perspectives presented by John Settlage as he examines the truth of the proposition that ‘many teacher educators harbour deficit perspectives about their pre-service teachers, presuming that their lack of exposure to economically, ethnically and linguistically diverse settings renders them deficient as future educators.’ In the study presented in his paper, he ‘uncovered shifting identities that indicate that mainstream future teachers do not fit the ‘‘damaged goods’’ label that ardent multiculturalists might be tempted to impose.’ One of his conclusions was that ‘the practices of essentializing education majors because of their perceived deficiencies born of privilege are inaccurate and unproductive.’ My reflections focus on tertiary teacher-researchers in mathematics, information technology, environmental sciences and engineering, their students and racism, and broaden Settlage’s context to teaching and research relationships in this setting.     

Comparative Mathematical Language in the Elementary School: A Longitudinal Study

This paper examines the change in young children’s understanding of ‘equal’, ‘more’, ‘less’, and ‘between’, words commonly used in equivalent and non-equivalent situations, over a 3-year period. Seventy-six children participated in the longitudinal study. Each year they were asked to share their understanding of these four words. Past research has indicated that many children have limited understanding of ‘equal’ as quantitative sameness. The results of this research suggested that many children also have limited understanding of ‘more’ and ‘less’ and that these understandings did not significantly change over the 3-year period.     

Changing Spatial and Synchronous Structures in the History and Culture of Learning

This paper argues that the conceptions of ‘space’ (and increasingly ‘time’) in the discussion of ‘the university’ (in its most transcendent sense) have gone through four distinct phases in the UK. Using a Heideggerian conception of ‘space’ where usefulness is more important than proximity, the ‘ancient’ universities were ‘useful’ to the gentry and thus were ‘closer’ to them than to the excluded ‘local’ poor in the institutions’ vicinities. The ‘civic’ universities on the other hand stressed ‘localism’ as part of their mandate – to educate the people of their locality (but only those of the new industrial middle class). The ‘Robbins’ universities were a partial return to the ‘ancient’ notion of learning as a ‘lived’ activity, providing scenic landscapes on green-belt campuses where students could ‘retreat’ from the ‘real world’ for the duration of their studies. The ‘spatial’ quality of these places was thus part of a conception of higher education as ‘lifestyle choice’ where young people moved away from their locality to study. As such ‘proximity’ was an issue only insofar as the greater the distance from one’s point of origin the better for successful immersion in the growing student ‘culture’. The ‘new/post-1992’ universities partially retained their polytechnic mandate to educate local people, but embraced a colonialist impulse regarding local space usage. ‘ ‘The discussion can be further refined to argue that these four stages are merely two phases which have repeated themselves: from ancient ‘exclusivity’ to civic ‘localism’ and back to Robbins era ‘exclusivity’ and thence to post-1992 ‘localism’ once more’. The opening up of higher education via the Internet in the late 20th and early 21st centuries provides for the possibility of the growth of entirely non-spatial and asynchronous learning experiences, and as such we may well be on the verge of the fifth stage of university development.     

Molecular modeling: A powerful tool for drug design and molecular docking

Molecular modeling has become a valuable and essential tool to medicinal chemists in the drug design process. Molecular modeling describes the generation, manipulation or representation of three-dimensional structures of molecules and associated physico-chemical properties. It involves a range of computerized techniques based on theoretical chemistry methods and experimental data to predict molecular and biological properties. Depending on the context and the rigor, the subject is often referred to as ‘molecular graphics’, ‘molecular visualizations’, ‘computational chemistry’, or ‘computational quantum chemistry’. The molecular modeling techniques are derived from the concepts of molecular orbitals of Hückel, Mullikan and ‘classical mechanical programs’ of Westheimer, Wiberg and Boyd.     

Educational research for professional practice: More than providing evidence for doing ‘x rather than y’ or finding the ‘size of the effect of A on B’

Educational research has been criticised by governments and practitioners. For some politicians and policy makers, there is a tendency to look for direct links between research and successful, effective and efficient practice. Research is needed to inform their evidence-based practice as policy makers, and to provide the kind of research teachers need to base their practice on the best available evidence for doing ‘x rather than y’ (Hargreaves 1996) or predicting the ‘size of the effect of A on B’ (Blunkett 2000). There is no doubt that both teachers and policy makers do make decisions on a daily basis based on some form of evidence. This paper explores Hargreaves’ notion of evidence-based practice, providing a range of criticisms. It also examines Carr’s historical account of ‘praxis’ and ‘poiesis’ to suggest a notion of evidence-based praxis based partly on the historical notion of ‘phronesis’ — practical wisdom. The basis for this is the argument that wise and practical ethical and moral judgements are central to an understanding of teachers’ daily work. What to do in a specific educational situation cannot be determined solely by theoretical beliefs or by ‘techne’. However the ethical dimension is not the only consideration. The paper suggests that evidence-based praxis use Stenhouse’s notion of ‘actionable evidence’, which includes the ethical dimension, but also Thomson’s concept of ‘thisness’, which describes the unique contextual characteristics of a school. If disadvantaged schools can make some sort of difference to learning opportunities for students, it is argued that teachers might engage in evidence-based praxis which involves them in reflecting on, and theorising what is happening in classrooms, schools and neighbourhoods. This ‘praxis’ also involves them in modifying their theories, critically analysing ‘what works’, questioning how they know and developing ideas about how things might be done differently. There will be an element of developing knowledge about teaching and learning strategies (Hargreaves’ ‘body of knowledge’), but it will be in the context of the ethical and moral dilemmas associated with education. It will take up the question of local differences as well as a realistic approach to what constitutes actual school improvement. Evidence-based praxis is also essentially a collective activity not an individual approach. Future development of the notion of evidence-based praxis might also include involving students in a more reciprocal and open learning process like that highlighted by researchers who focus on student participation linked to school reform.     

PUTTING CONTEXT IN CONTEXT: AN EXAMINATION OF THE EVIDENCE FOR THE BENEFITS OF ��CONTEXTUALISED�� TASKS

The professional literature in mathematics education is replete with calls to use tasks that are ‘authentic’, ‘relevant’ and related to ‘real life’ and the ‘real world’. Such activities are frequently advocated for their potential to motivate and engage students, but evidence of their ability to do so is rarely presented. This paper examines evidence in relation to the effectiveness of context problems in achieving their intended purposes and thereby contributing to enhanced student participation, engagement and achievement in mathematics education. It is argued that context problems are not a panacea and that categorising problems as contextualised or de-contextualised is less helpful than the consideration of more salient aspects of tasks that impact on their effectiveness. Such aspects also relate to the purposes for and affordances and limitations of particular tasks in relation to the purposes they are intended to serve, along with attention to the contexts in which students learn mathematics. Examples of theoretical and empirical programs built on these considerations are reviewed in terms of their potential to enhance participation, engagement and achievement in school mathematics.     

From Young Children’s Ideas about Germs to Ideas Shaping a Learning Environment

This paper is concerned with highlighting young children’s ideas about the nature, location and appearance of germs, as well as their reasoning strands about germs’ ontological category and biological functions. Moreover, it is concerned with exploring how all these could be taken into account for shaping a potentially fruitful learning environment. Conducting individual, semi-structured interviews with 35 preschoolers (age 4.5–5.5) of public kindergartens in the broader area of Patras, we attempted to trace their ideas about what germs are, where they may be found, whether they are good or bad and living or non-living and how they might look like in a drawing. Moreover, children were required to attribute a series of biological functions to dogs, chairs and germs, and finally to create a story with germs holding a key-role. The analysis of our qualitative data within the “NVivo” software showed that the informants make a strong association of germs with health and hygiene issues, locate germs mostly in our body and the external environment, are not familiar with the ‘good germs’-idea, and draw germs as ‘human-like’, ‘animal-like’ or ‘abstract’ entities. Moreover, they have significant difficulties not only in employing biological functions as criteria for classifying germs in the category of ‘living’, but also in just attributing such functions to germs using a warrant. Finally, the shift from our findings to a 3-part learning environment aiming at supporting preschoolers in refining their initial conceptualization of germs is thoroughly discussed in the paper.     

A Study on Student Teachers’ Misconceptions and Scientifically Acceptable Conceptions About Mass and Gravity

The aims of this study were considered under three headings. The first was to elicit misconception that science and physics student teachers (pre-service teachers) had about the terms, ‘‘inertial mass’’, ‘‘gravitational mass’’, ‘‘gravity’’, ‘‘gravitational force’’ and “weight”. The second was to understand how prior learning affected their misconceptions, and whether teachers’ misconceptions affected their students’ learning. The third was to determine the differences between science and physics student teachers’ understanding levels related to mass and gravity, and between their logical thinking ability levels and their attitudes toward physics lessons. A total of 267 science and physics student teachers participated in the study. Data collection instruments included the physics concept test, the logical thinking ability test and physics attitude scale. All instruments were administered to the participants at the end of the 3rd semester of their university years. The physics test consisting of paper and pencil test involving 16 questions was designed, but only four questions were related to mass and gravity; the second test consisted of 10 questions with two stages. The third test however, consisted of 15 likert type items. As a result of the analysis undertaken, it was found that student teachers had serious misconceptions about inertia, gravity, gravitational acceleration, gravitational force and weight concepts. The results also revealed that student teachers generally had positive attitudes toward physics lessons, and their logical thinking level was fairly good.     

Learning environment profiles of Turkish secondary biology classrooms

The purposes of this study were to examine how Turkish students perceived their biology classroom environment, how their perceptions compared to those of students in other countries, and what classroom learning environment profiles could be discerned in Turkish high school biology classrooms. Data were gathered from 1,474 high school students in four inner city schools, in Bursa, Turkey. A total of 11 biology teachers participated in the study with 52 of their classes. Data on students’ perceptions of their learning environment were collected with the What Is Happening In this Class? (WIHIC) questionnaire. Results indicated that Turkish classrooms were perceived as being low in terms of Teacher Support and high in terms of Task Orientation. Six distinct classroom learning environment profiles were found: the ‘self-directed learning classroom’, ‘task-oriented cooperative learning classroom’, ‘mainstream classroom’, ‘task-oriented individualised classroom’, ‘low-effective learning classroom’ and ‘high-effective learning classroom’. The most common profile was the ‘mainstream classroom’ for which all WIHIC scales had medium–high scores.     

When state centralism meets neo-liberalism: managing university governance change in Singapore and Malaysia

With strong intention to enhance the global competitiveness of their university systems, both the Singapore and Malaysia governments have introduced reforms along the lines of ideas and practices embedded in neo-liberalism. In the last decade or so, we have witnessed reforms being introduced to the higher education sectors in these Asian states, particularly when corporatization and incorporation strategies are adopted to transform national/public universities. With particular reference to how academics evaluate the impact of the reforms on their academic life, this article reports and analyses findings generated from campus visits and field interviews conducted in Singapore and Malaysia from 2007 to 2009. Although the senior management of corporatized/incorporated universities in these Asian states has been given more discretion to decide how to operate their universities, most of the front line academics that we interviewed have not experienced major differences in university governance after the reforms took place. Instead of feeling ‘emancipated’ and ‘empowered’, many academics feel more pressures and control from the university administration and government ministries. Despite the fact that both the Singapore and Malaysia governments have tried to embrace the ideas and practices of ‘neo-liberalism’ to transform university governance, academics still see the state’s reluctance in withdrawing from steering/controlling higher education development. Such observations clearly reflect the ‘clash’ of two major governance philosophies, namely, ‘state centralism’ and ‘neo-liberalism’. In short, this article critically examines how far the proposed university governance reforms by adopting the corporatization/incorporation strategies have actually transformed university management and academic life style in Singapore and Malaysia.     

The Mathematical Concept of set and the 'Collection' Model

Analysing the various misconceptions held by students with regard to the mathematical set concept, the authors hypothesized that these misunderstandings may be explained by the initial ‘collection’ model. Even after learning the formal properties of a set in the mathematical sense, the students are still influenced in their reactions by the collection representation, which acts ‘from behind the scenes’ as a tacit model. If the mathematical concept is not continually reinforced through systematic use, it is the initial figural interpretation which will replace, as an effect of time, the formal one. The findings confirmed this hypothesis. This revised version was published online in July 2006 with corrections to the Cover Date.     

Global warming: A myth?

Increase in the concentration of several greenhouse gases in the atmosphere during the last few decades has warmed up the atmosphere, a phenomena popularly known as ‘global warming’. There are people who believe that ‘global warming’ does not exist, or will have negligible consequences on the earth and its biosphere, if at all it exists. Satellite record over the past few decades have shown a slight cooling trend in the lower troposphere, casting a doubt on the existence of ‘global warming’. During the same time, atmosphere near earth’s surface has shown a warming trend. Efforts are on to explain this temperature anomaly and it may take time to say conclusively whether ‘global warming’ exists or not.     

Learning with Web Tools, Simulations, and Other Technologies in Science Classrooms

This position paper proposes the enhancement of teacher and student learning in science classrooms by tapping the enormous potential of information communication and technologies (ICTs) as cognitive tools for engaging students in scientific inquiry. This paper serves to challenge teacher-held assumptions about students learning science ‘from technology’ with a framework and examples of students learning science ‘with technology’. Whereas a high percentage of students are finding their way in using ICTs outside of school, for the most part they currently are not doing so inside of school in ways that they find meaningful and relevant to their lives. Instead, the pedagogical approaches that are most often experienced are out-of-step with how students use ICTs outside of schools and are not supportive of learning framed by constructivism. Here we describe a theoretical and pedagogical foundation for better connecting the two worlds of students’ lives: life in school and life outside of school. This position paper is in response to the changing landscape of students’ lives. The position is transformative in nature because it proposes the use of cyber-enabled resources for cultivating and leveraging students new literacy skills by learning ‘with technology’ to enhance science learning.     

A New Two-Step Approach for Hands-On Teaching of Gene Technology: Effects on Students’ Activities During Experimentation in an Outreach Gene Technology Lab

Emphasis on improving higher level biology education continues. A new two-step approach to the experimental phases within an outreach gene technology lab, derived from cognitive load theory, is presented. We compared our approach using a quasi-experimental design with the conventional one-step mode. The difference consisted of additional focused discussions combined with students writing down their ideas (step one) prior to starting any experimental procedure (step two). We monitored students’ activities during the experimental phases by continuously videotaping 20 work groups within each approach (N = 131). Subsequent classification of students’ activities yielded 10 categories (with well-fitting intra- and inter-observer scores with respect to reliability). Based on the students’ individual time budgets, we evaluated students’ roles during experimentation from their prevalent activities (by independently using two cluster analysis methods). Independently of the approach, two common clusters emerged, which we labeled as ‘all-rounders’ and as ‘passive students’, and two clusters specific to each approach: ‘observers’ as well as ‘high-experimenters’ were identified only within the one-step approach whereas under the two-step conditions ‘managers’ and ‘scribes’ were identified. Potential changes in group-leadership style during experimentation are discussed, and conclusions for optimizing science teaching are drawn.     

On Understanding the Notion of Limits and Infinitesimal Quantities

In this paper we explore the influence of students’ personalized notion of ‘small’ numbers based on real life experiences on their understanding of limits. Tests were conducted on two samples of students. The first sample, consisting of students in the XII grade, had been taught limits using an informal approach (i.e., without recourse to the definition) and the second sample, consisting of first year undergraduates, had been taught the formal definition of limits. Our research points out that most students in both samples round off to zero such ‘small numbers’ while evaluating limits wherever such numbers might occur because they perceive limit as a process of approximation.     

The Relation between Idealisation and Approximation in Scientific Model Construction

The notions of ‘idealisation’ and ‘approximation’ are strongly linked to the question of ‘how our theories represent the phenomena in their scope’. Although there is no consensus amongst Philosophers on the nature of the process of idealisation and how it affects theoretical representation, at the level of science education much can be gained from the insights of existing philosophical analyses. Traditionally, teaching methodologies treat the observed divergence between theoretical predictions and experimental data by appealing to the more common-sensical notion of ‘approximation’. The use of the latter notion, however, to explicate discrepancies between theory and experiment obscures the theory/experiment relation. It does so, I argue, because from the viewpoint of scientific modelling ‘approximation’ either depends upon or piggybacks on ‘idealisation’.     

Developing a taxonomy of science concepts based on a scale of empirical distance

The term ‘concept’ is used in different ways within educational literature and has at least two different, although related, referents in relation to science knowledge, namely, public knowledge and private understandings. A taxonomic structure for ‘science concepts’ (public knowledge) has been developed to provide a rationale for the choice of phenomena to be used in the investigation of students’ ‘concepts’ and also to act as a frame of reference for generating insights about the data to be collected. Furthermore, it may be a useful heuristic to predict other science concepts likely to be highly problematic in school teaching situations and thus worthy of detailed research. The taxonomy, called a ‘Scale of Empirical Distance’ (SED), enables science concepts to be mapped according to their degree of closeness to concrete realities. The scale shows a recognition of the empirical basis of science concepts and the role of human senses in the perception of the material world even though “absolute objectivity of observation is not a possible ideal of science” as Harre (1972) has noted. The scale uses two binary variables, namely, ‘visual’ and ‘tactile’, to generate four categories of science concepts ranging on a continuum from concrete to abstract. Some concepts related to ‘matter’ will be classified and discussed. Specializations: science teacher education, primary science curriculum and methods, students’ personal meanings of phenomena.     

Impact of authenticity on sense making in word problem solving

The study presented in this paper seeks to investigate the impact of authenticity on the students’ disposition to make necessary real world considerations in their word problem solving. The aim is also to gather information about the extent to which different reasons for the students’ behaviors are responsible for not providing solutions that are consistent with the ‘real’ situations described in the word problems. The study includes both written solutions to word problems and interview data from 161 5th graders. The results show an impact of authenticity on both the presence of ‘real life’ considerations in the solution process and on the proportion of written solutions that were really affected by these considerations. The students’ frequent use of superficial solution strategies and their beliefs about mathematical word problem solving were found to be the main reasons for providing solutions that are inconsistent with the situations described in the word problems.