The use of reverse engineering to analyse student computer programs

In this paper, an explanatory program understander that can analyse student solutions for programming assignments is described. The approach uses a number of reverse engineering techniques and is grounded on a cognitive model of procedural programming knowledge. It will be shown that, through the use of reverse engineering techniques, a lot of feedback (e.g. on errors) can be generated without having to use any prior knowledge on what the program is supposed to do. When such information is available, problem-specific feedback can also be generated. Furthermore, the use of the cognitive programming concepts allows one to specify the errors in an understandable way using exactly the same words and concepts as human programmers. This opens interesting possibilities for other uses of the proposed program understanding technique described in this article.     

Globalized curriculum or global approach to curriculum reform in mathematics education

The mathematics education community has shown considerable awareness of the international status of their discipline. While internationalization of the discipline is not a new phenomenon, globalization is a relatively recent term in educational discourse. This paper presents a theoretical model towards the study of globalization and internationalization in mathematics education based on previous publication by the authors. Secondly, it identifies some key issues that have been discussed in the literature and that may require further discussion and research in the field. In particular it discusses the issue of similarity of mathematics education curricula around the world. The concept of a global curriculum is rejected in favor for more internationalized approach to curriculum reform based on collaboration between mathematics educators.     

Should one develop nonformal education?

In the following pages we are reproducing, with the kind permission of the International Council for Educational Development (ICED) and of Unicef large extracts from a report entitled Nonformal Education for Rural Development: Strengthening Learning Opportunities for Children and Youth' (February 1973).The ICED is a non-profit research organization concerned with improving education's contribution to economic and social development in all the regions of the world.In carrying out this study, at the request of Unicef, Philip H. Coombs was assisted principally by Roy C. Prosser, Deputy Director of the Study; Manzoor Ahmed, Assistant to the Director; Roshan R. Billimoria, Research Assistant, and Sven Grabe, Special Consultant.The main part of the text printed here is drawn from Chapters II and VI of the report. Formerly Director of the International Institute for Educational Planning (Unesco). Currently Vice Chairman of ICED Among his many publications is The World Education Crisis: A Systems Analysis (1968).     

Lifelong Learning: An Enduring Mandate for Higher Education

Lifelong learning is not only an established psychological fact, it is a compelling political and educational slogan that appeals equally to those concerned with the fulfilment and realisation of human potential, and those who are interested in the pragmatic need to keep up with rapid social and technological change.

A number of recent discussion papers and government reports (see, e.g., Aulich, 1990; Australia Council, 1990; Butler, 1989; Dawkins, 1988; DEET, 1990; Johnson, 1990) have mentioned the concept of lifelong learning as either a cause or an effect of recommended changes in the structure, administration or policy of higher education in Australia.

The purpose of this paper is to examine lifelong learning and to distinguish it from a number of other concepts and practices with which it is frequently associated. The paper then moves on to a consideration of lifelong learning in the Australian context, and in particular in higher education. It is argued that in many instances the rhetoric has outstripped the reality. Yet there are positive signs that notwithstanding the dominant ideology of instrumentalism so prominent at present, there are many initiatives and programs which, taken together, are contributing towards the fulfilment of lifelong learning. It is concluded that Australian higher education institutions are able to realise the ideal of contributing to a learning society, while at the same time being more pragmatic and accountable in aspects of their work.     

Early Islam in British Higher Education

Abstract

In an educational environment where interest in Arabic and Islam is growing, I ask the place of revisionist/critical approaches to early Islam in Higher Education. This paper uses 15 semi-structured interviews with Lecturers in early Islam to investigate how they treat controversial subject matter in the classroom. The paper examines how the different approaches taken by lecturers are linked to different kinds of academic training, and asks what kinds of approach are suited to different student demographics. It concludes by suggesting how critical ways of teaching this subject are linked to new approaches in interfaith engagement, which acknowledge the political context for the development of Scriptures.     

MicroObservatory Net: A Network of Automated Remote Telescopes Dedicated to Educational Use

Many students have a deep interest in astronomy, but a limited opportunity to use telescopes to explore the heavens. The MicroObservatory Network of automated telescopes is designed to provide access to classroom teachers who wish their students to conduct projects over the World Wide Web. The intuitive interface makes it easy for even 10-year-olds to take pictures. Telescopes can be remotely pointed and focused: filters, field of view, and exposure times can be changed easily. Images are archived at the website, along with sample challenges and a user bulletin board, all of which encourage collaboration among schools. Wide geographic separation of instruments provides access to distant night skies during local daytime. Since first light in 1995, we have learned much about remote troubleshooting, designing for unattended use, and for acquiring the kinds of images that students desire. This network can be scaled up from its present capability of 240,000 images each year to provide telescope access for all US students with an interest in astronomy. Our WWW address is http://mo-www.harvard.edu/MicroObservatory/     

Keeping Secrets: ESP/LSP and the sociology of knowledge

Summary This article examines the notions of ‘specialisation’ or ‘specificity’ as they are used in expressions such as ‘English for special purposes’ (ESP) or languages for specific purposes’ (LSP). It is argued that a given variety of language is not ‘special’ or ‘specific’ in some absolute or objective way, inherent to its formal structures, topics and norms. ‘Specificity’ is, rather, the result of a particular relationship between participant and discourse, between two cultures or worlds of knowledge. For these reasons, it is often not particularly helpful to attempt to describe specific varieties in terms of linguistic features. Instead, we need to situate the problem within a general theory of the sociology of knowledge by asking fundamental questions such as ‘Specialised for who?’ and ‘Who knows what?’, ‘How do they acquire and use their knowledge?’. Such a theory will necessarily be both relative and social: relative to the individual and to the way in which knowledge is socially distributed. But it will also be a theory of discourse, since interactive language‐use is the principal mechanism by which individuals acquire, stock and share all knowledge, ‘specialised’ or otherwise. It is suggested that two factors need to be kept in mind by the didactician interested in LSP. First, is the discourse asymmetric?, i.e. does it assume or contain knowledge which the learner does not have? Secondly, is the discourse non‐collaborative?, i.e. one where no attempt is made to share the knowledge with uninitiated participants.     

Relative preferences for various bivalued ratio schedules

Widely cited experiments on optimal foraging have used bivalued distributions as representing environmental stochasticity, characterizing these in terms of their arithmetic means. In contrast, research on free-operant choice has established that organisms prefer variable patterns of food delivery, relative to fixed patterns with the same mean values. To explore such departures from linear averaging, specifically with respect to bivalued alternatives, pigeons were given choices between a fixed-ratio (FR) schedule of food delivery that required 15, 30, or 60 responses and bivalued variable-ratio schedules with an arithmetic mean of 60,5 or 60, A bivalued schedule of 1 and 120 was preferred almost exclusively over each of the FR values. With a bivalued schedule of 15 and 105, there was a shift of preference, most notably in the FR-15 condition, but in no case was linear averaging a good predictor of the birds’ choices. Geometric averaging fared better, but even this failed to represent the apparent salience of the minimum value of the bivalued schedule in some conditions.     

Factors influencing success in introductory college chemistry

Previous research has found a wide range of predictors of student performance in introductory college chemistry. These predictors are associated with both the students' backgrounds and their high school learning experiences. The purpose of this research study was to examine the link between high school chemistry pedagogical experiences and performance in introductory college chemistry while accounting for individual educational and demographic differences. The researchers surveyed 1531 students enrolled in first‐semester introductory college chemistry courses for science and engineering majors at 12 different U.S. colleges and universities. Using multiple regression analysis, the researchers uncovered several interesting high school pedagogical experiences that appeared to be linked with varying levels of performance in college chemistry. Most notably, the researchers found that repeating chemistry labs for understanding was associated with higher student grades, whereas overemphasis on lab procedure in high school chemistry was associated with lower grades in college. These results suggest that high school teachers' pedagogical choices may have a link to future student performance. © 2005 Wiley Periodicals, Inc. J Res Sci Teach 42: 987–1012, 2005