Cancer genes: The molecular militants

‘What actually seems to have happened when a cancer appears in an organism is that the biological behavior of some of the cells which make up that organism have changed. Whereas these cells had hitherto behaved in a manner consistent with the life of the organism, obeying the ‘rules’ of growth and differentiation, they quite suddenly cease to respond to such restraints and set off on a ‘lawless’ course of increased division, invasion of adjacent normal tissues, and even migration (metastasis) via the blood stream and lymph channels to other parts of the body.’ R J C Harris inCancer, 1962.     

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.     

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.     

An exploratory study into the complexity of relations between physics lecturers’ crafting of practice and students’ expectations of quality teaching

This study contributes to research that characterises the affective learning that is evoked and taken on by students in response to their perceptions of their contextual learning environments. Interview-discussions were held with lecturers of both introductory and higher-level physics courses (n = 3) concerning how they formulated their patterns of teaching in terms of a particular conceptual framing that they considered to best optimize making learning possible. Subsequently their students (n = 212) were asked with written questions, and some select follow-up interview-discussions, to describe what they expected from ‘a good physics lecturer’. The relationships between these two things—the lecturer’s crafting of practice and the students’ expectations of quality teaching—were investigated. Results show that students’ expectations tend to match their lecturers’ practice, indicating that students are strongly influenced by a contextually based appreciation of ‘good’ teaching.     

Mitochondria can power cells to life and death

Mitochondria serve as power houses of cells but they also possess ‘covered’ knives to kill the cells. A number of intrinsic and extrinsic factors exist which regulate cell killing by mitochondria. Caspases are comparable to a surgeon’s knife, which can be used to sculpt organisms, get rid of wayward, redundant and incorrigibly damaged cells, but can spell doom if not controlled properly.     

Decoding non-coding DNA: Trash or treasure?

Non-coding DNA, once thought of as ‘junk’, represents a very large portion of an organism’s genome. However, recent research has brought to lightmany functional elements present within non-coding DNA sequences and unravelled a fascinating array of functions performed by these elements. These findings have highlighted the nature of the evolutionary forces that led to the accumulation and retention of non-coding DNA. In this article, the various elements present within noncoding DNA, their functional relevance to the cell and the changing perspective of the scientific community towards this so-called ‘junk’ DNA have been described.     

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.     

Disciplinary epistemologies,generic attributes and undergraduate academic writing in nursing and midwifery

Generic attributes such as ‘holding a critical stance’, ‘using evidence to support claims’, and ‘projecting an impersonal voice’ are central to disciplinary academic writing in higher education. These attributes, also referred to as ‘skills’, have for a long time been conceptualised as transferable in that once learnt students are able to use them in a variety of contexts and for a range of needs. Over the past few years, however, the conceptualisation of these attributes as transferable has come under close scrutiny as they have been identified to be highly context-sensitive rather than context-flexible as they were once thought to be. Drawing on data from a 2-year study on undergraduate academic writing in nursing and midwifery at a university in the UK, this paper critically examines the role of disciplinary epistemologies in the conceptualisation of these attributes in the two disciplines, and demonstrates how these beliefs help to shape academic writing at undergraduate level, thus contributing to debates on generic skills and attributes and specificity in disciplinary discourses. The paper concludes by highlighting the importance for writers to examine how knowledge is displayed, constructed and communicated in their disciplines, and the significance of analysing the relationship between disciplinary epistemologies, generic attributes and academic writing as a way of gaining access to and producing central discourses in their professional community.     

Teaching students to think critically about science and origins

In David Long’s article, Scientists at Play in a Field of the Lord, he studies the discourse between a network of regional scientists, atheists, activists and evolutionists at the opening of The Creation Museum on Memorial Day, 2007. This review essay examines the teaching of evolution through the teacher’s ‘lens of empathy’ and also considers a ‘pupil centeredness’ approach. As a practicing science educator, I have found it paramount to take into consideration my students’ backgrounds and their families’ beliefs in order to understand their preconceived notions about the origins of life. By teaching evolution as ‘a theory with both facts and fallacies’ only then does it become an opportunity for critical thinking that fosters growth and risk taking in a safe environment. Most times students hear evolution preached as a one-sided lecture by teachers who believe it’s “my way or the highway” and leave little or no room for dialogue. I believe that a teacher’s job is to stay updated with current research on the theory of evolution and then present all the information to students in a way that creates personal opportunities for them to adjust their existing schema without demeaning them, their ideas, or their faith or belief system. This not only shows value, compassion and tolerance for them as thinking humans, but also allows them opportunities to develop critical thinking, which helps to shape whom they become as adults.     

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.     

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.     

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.     

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.     

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.     

Environmental education in a ‘green classroom’

The ‘Green Classroom’ in the Botanical Garden of Ulm is an experiential learning forum outside school. Its educational concept is based on experimental learning and is geared towards expanding biological knowledge and developing positive attitudes towards small animals such as invertebrates and insects. The attitudes of 68 school students towards small animals, before and after they visited the ‘Green Classroom’, were assessed and the answers they gave in their questionnaires were compared with those of 60 students froma control group that was not yet exposed to this learning environment. Although the students spent only one morning in the ‘Green Classroom’, some of their attitudes towards small animals improved after their visit. These studies underscore the necessity for direct observation and familiarization of the environment including small animals such as invertebrates and insects for appreciating issues related to biodiversity and conservation.     

Expert Witnesses: Voices Of Significance

Michael Fullan in 1991 made the comment that little was known about how students viewed educational change, as no one had thought to ask them. There is a small but growing literature seeking the views of students on a range of issues associated with schooling. This paper reports the findings of a study of students’ perceptions of top–down educational change, involving school amalgamations, closures and creation of middle schools. The policy process was purportedly to involve consultation with students. The study interviewed students to explore the nature and extent of their participation in the policy enactment and their views about the changes. Several meta level themes emerged from the students’ ‘voices,’ including issues associated with disempowerment, and competing social justice and economic discourses. The findings foreground the often messy and contradictory tensions evident in policy processes. The study found that despite the policy intent to include students, they continued to be the ‘objects’ of policy initiatives, submerged in what Freire labelled a ‘culture of silence.’ It was the macro level policy elite who exerted the most influence, using their power, privilege and status to propagate particular versions of schooling. The paper concludes that students are deeply impacted by educational change and they want to participate in restructuring agendas. Therefore policy makers at all levels need to make spaces for the active engagement of students in policy processes.