Learning Through Constructing Representations in Science: A framework of representational construction affordances

Compared with research on the role of student engagement with expert representations in learning science, investigation of the use and theoretical justification of student-generated representations to learn science is less common. In this paper, we present a framework that aims to integrate three perspectives to explain how and why representational construction supports learning in science. The first or semiotic perspective focuses on student use of particular features of symbolic and material tools to make meanings in science. The second or epistemic perspective focuses on how this representational construction relates to the broader picture of knowledge-building practices of inquiry in this disciplinary field, and the third or epistemological perspective focuses on how and what students can know through engaging in the challenge of representing causal accounts through these semiotic tools. We argue that each perspective entails productive constraints on students’ meaning-making as they construct and interpret their own representations. Our framework seeks to take into account the interplay of diverse cultural and cognitive resources students use in these meaning-making processes. We outline the basis for this framework before illustrating its explanatory value through a sequence of lessons on the topic of evaporation.     

The Semiotic Function of a Bridging Representation to Support Students’ Meaning-Making in Solution Chemistry

Research in Science Education - Many researchers have reported that bridging analogies can productively support students’ scientific meaning-making. How this can be understood semiotically...     

A Curriculum Innovation Framework for Science, Technology and Mathematics Education

There is growing concern about falling levels of student engagement with school science, as evidenced by studies of student attitudes, and decreasing participation at the post compulsory level. One major response to this, the Australian School Innovation in Science, Technology and Mathematics (ASISTM) initiative, involves partnerships between schools and community and industry organisations in developing curriculum projects at the local level. This project fulfils many of the conditions advocated to engage students in learning in the sciences. ASISTM is underpinned by the notion of innovation. This paper describes the findings of case study research in which 16 ASISTM projects were selected as innovation exemplars. A definition of innovation and an innovation framework were developed, through which the case studies were analysed to make sense of the significance of the ideas and practices, participating actors, and outcomes of the projects. Through this analysis we argue that innovation is a powerful idea for framing curriculum development in the sciences at the local level that is generative for students and teachers, and that these ASISTM projects provide valuable models for engaging students, and for teacher professional learning.     

Discourse communities: A framework from which to consider professional development for rural teachers of science and mathematics

This paper explores aspects of professional development for teachers of science and mathematics in schools in rural Australia. The study identified a range of issues including tensions between government, school and individual professional learning priorities and their respective responsibilities; the shaping of professional development by rurality; and issues of generic versus subject-specific professional learning. The paper will focus on the needs of teachers, particularly secondary teachers, for subject-specific professional development and the capacity of different professional development approaches for satisfying these needs. The notion of discourse communities is proposed as a framework for considering this issue.     

A Window for a Purpose: Developing a Framework for Describing Effective Science Teaching and Learning

This paper describes the development of a framework – the SIS Components – for describing effective teaching and learning in science, to support a system wide change initiative. The methodology used and the analysis that led to their refinement, is traced to expose the different issues involved in constructing the notion of effective practice. These issues have to do with purpose, politics and audience. They determine features of the framework such as specificity, elements focused on, and the support structures that are put in place to establish the particular discourse being promoted. The paper describes the different research methods used to establish, to promote and to validate the components, and outlines the different senses in which this and any framework can be seen as contingent on the setting for which it is intended.     

The Usefulness of a Science Degree: The “lost voices” of science trained professionals

This paper reports a study of science graduates who are employed in positions outside their discipline specialisation. The research was designed to uncover the reasons for them choosing to study science at university, the competencies they utilise in their work and their lives, and how these relate to their undergraduate education in science. The study is seen as important in that already about one‐half of science graduates are in such positions and it is argued that there is a need in scientific and technologically based societies to have a greater representation of such people in decision‐making positions in government and industry. The directions for the science degree that can be drawn from the data gathered are congruent with those arising from other relevant studies. That is, attention should be paid to widely used skills, such as communication and problem‐solving, and to developing an understanding of science within its social and ethical context. An argument is mounted for considering the way the science degree is presented to potential students and to the general public.     

A Comparison of Professional Development Models for Teachers of Primary Mathematics and Science

The authors have been involved in two substantial Australian teacher professional development projects, with the Mathematical Association of Victoria and with the Science Teachers’ Association of Victoria, which focused, respectively, on a whole‐school professional development and an extended workshop programme. The research described in this paper explores the experiences of participants in these two programmes, in order to identify the advantages and limitations of each type of professional development model in supporting teacher development, and the different needs of teachers in relation to mathematics and science. The findings from a questionnaire, supported by participant interviews, show a range of differences in experience and outcomes due to programme style and subject area. These are used to suggest a developmental framework for conceptualizing teacher professional development needs.     

Dimensions of evidence,the public understanding of science and science education

This paper explores the nature and type of evidence employed by participants in an issue of public concern. By examining documents and interviewing members of the public involved in the debate, the way in which evidence was used in the arguments for and against the issue was determined. Three dimensions of evidence emerged from the data: formal scientific evidence based on the data; informal evidence (e.g. common sense, personal experience) and wider issues which impinge on the evidence (e.g. environmental or legal concerns). In this particular controversy, it was the questioning of the formal evidence by local scientists which became the 'magic bullet' but pertinent questioning by local nonscientists also framed the debate. The authors suggest that school science curricula should include practice in questioning and manipulating different sorts of real data in a variety of ways so that pupils are equipped and empowered to tackle contemporary issues of this kind.     

Independent research projects in school science: case studies of autonomous behaviour

A group of students were interviewed about their experiences in pursuing independent research projects with a view to building up a picture of autonomous student behaviour in the pursuit of expressed interests. In each case the students were led to autonomous behaviour beyond that normally expected in school science. In quite a few cases the independence and commitment shown were remarkable, and matched by a coherent personal philosophy that valued such behaviour. The range of objects and their sources were varied, but school and teachers had surprisingly little impact on either the topics chosen or the progress of the project. Most encouragement and support was found within the home environment. The projects proved in many cases to be major vehicles for knowledge acquisition, and it is argued that the knowledge was gained in a more valid way than is generally the case in school science.