Despite the advantages of problem based learning (PBL) and the fact that it has been utilised for some time in conventional higher education settings, it is not widely used in distance education in Hong Kong. Recently, a small group of course co-ordinators at the Open University of Hong Kong engaged in a series of action learning projects to explore ways in which it could be incorporated into their courses. The purpose of this paper is to report the opinions of these academics about the suitability of PBL for a distance education environment. Generally, they concluded that it is possible, and perhaps desirable, to consider implementing PBL as one learning approach. However, most of the projects focussed on a fairly narrow application of PBL, namely in face-to-face tutorials. The limitations of the participants' interpretations are discussed in the light of the constraints they face, and some recommendations are made for other ways of implementing PBL into distance education.
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http://dx.doi.org/10.1080/0158791000210206]

Procedural and conceptual knowledge for solving a basic quantitative problem in chemistry by expert and novice secondary school students is reported. Experts use a known qualitative procedure with a working forwards strategy to obtain a numerical solution. Novices attempt a means-ends analysis strategy which is often unsuccessful, so switch to a simple formula-driven working forwards strategy to obtain a numerical solution, the qualitative procedure being either omitted or only partially formed. A gradual shift in strategies and representations used as expertise increases was observed. Differences with findings for problem solving in physics were also found. Experts' conceptual knowledge is accurate and linked to underlying procedural knowledge, whereas novices have misconceptions and a poor understanding of formulae. Conceptual understanding, use of a qualitative procedure, and the type of strategy used, are major differences between experts and novices. Instructional techniques are suggested in these areas to enhance problem solving and teaching.
[Copyright of International Journal of Science Education is the property of Routledge. Full article may be available at the publisher's website:
http://dx.doi.org/10.1080/095006999290787]

Recent international studies have highlighted the success of students from Hong Kong in mathematics and problem-solving, and have begun to suggest some of the factors associated with this success. Other studies have suggested that Hong Kong students are averse to risk-taking, favouring memorisation and imitation in their solution strategies. Year 5 students in Hong Kong and Australia were given mathematics assessments of different types: orally presented mental computation problems, and a performance task that was undertaken in normal classroom conditions. Observations of the students' approaches to these tasks in the classroom and analyses of their responses revealed similarities and differences between the two countries. The implications of these findings are discussed in light of the curriculum diversity and differences in metacognitive skills.
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http://dx.doi.org/10.1080/09500790802485211 ]

Extensive studies have been conducted on programming knowledge, instructional environments and effective pedagogies in order to improve the teaching and learning of computer programming. However, there have been few studies on the usefulness and effectiveness of using simulation. The aim of this paper is two-fold: to describe the design and development of a computer-based simulation tool for learning computer programming and to report a case study of four students' learning experiences using the simulation tool, which provides a learning environment in the context of daily life. In solving the problem posed by the simulation tool, students are encouraged to think and construct their own solutions. Three categories with respect to students' learning processes were observed in the study, namely dynamic learning experience, fostering cognitive approaches and stimulating attitude change. Implications of the simulation for learning programming are also discussed. It is hoped that the simulation tool will inspire students to look beyond a specific simulation and transfer insights gained from the simulation to the learning of computer programming.
[Copyright of Educational Media International is the property of Routledge. Full article may be available at the publisher's website:
http://dx.doi.org/10.1080/09523980600641452]