The constructivist paradox: Teachers’ knowledge and constructivist science teaching

Advocates of constructivist science recommend that school science begins with children’s own constructions of reality. This notion of the way in which students’ knowledge of science grows is closely paralleled by recent research on teachers’ knowledge. This paper draws on case study evidence of teachers’ work to show how two experienced teachers’ attempts to develop alternative ways of teaching science involved reframing their previous patterns of understanding and practice. Two alternative interpretations of the case study evidence are offered. One interpretation, which focuses on identifying gaps in the teachers’ knowledge of science teaching, leads to theconstructivist paradox. The second interpretation explores theconstructivist parallel, an approach which treats the process of teachers’ knowledge growth with the same respect as constructivists treat students’ learning of science. This approach, the authors argue, is not only more epistemologically consistent but also opens up the possibilities of helping teachers lead students towards a constructivist school science. Specializations: Teachers’ knowledge and culture, educational change, qualitative research methodology. Specializations: Teachers’ knowledge, imagery and teachers’ work, teacher collegiality, supervision of teachers’ work.     

The application of science to technology

The notion that technology is the application of science to the making of artefacts is a widely-held, persistent and influential view. Considerable scholarly work has been done during the past quarter century to refute it on the grounds that it is historically and ontologically inaccurate. It is a view which fails to recognise the contribution of non-scientific factors to technological development,which neglects the reverse contribution of technology to science, and which offers a superficial account of the process of application. This paper focusses on this last point, and argues that in those cases where science is applied to technology, the application process is usually exceedingly complex. The process involves the selection of appropriate knowledge, the adoption of differing criteria and the translation and re-shaping of knowledge to make it amenable to the technologist. The issue has important implications for the school curriculum. Specializations: science/technology education, technology teacher education, educational evaluation.     

The reluctant primary school teacher

The study attempts to identify the factors which affect teacher's reluctance to teach science, then explains an approach to help teachers teach science in a worthwhile manner over the school year while monitoring any changes in their confidence and competence. It was found that the condidence and competence of the teachers improved during the year such that they were able to teach successful science lessons on a regular basis. Specializations: primary science and technology education, curriculum development and implementation, teacher education. Specializations: primary science curriculum, early childhood education, gender and science. Specializations: primary science and technology education, issues related to girls in science and technology.     

Technology in the curriculum: A vehicle for the development of children's understanding of science concepts through problem solving

This research was carried out over a period of ten months with children in Grades 2 and 3 (aged 7 and 8) who were participating in a sequence of technology activities. Since the introduction into Victorian primary schools ofThe Technology Studies Framework P-10 (Crawford, 1988), more teachers are including technology studies in their classrooms and by so doing may assist children's understanding of science concepts. Children are being exposed to science phenomena related to the technology activities and Technology Studies may be a way of providing children with science experiences. ‘Technology Studies’ in this context refers to children carrying out practical problem solving tasks which can be completed without any particular scientific knowledge. Participation in the technology activities may encourage children to become actively involved, thereby facilitating an exploration of the related science concepts. The project identified the importance of challenge in relation to the children's involvement in the technology activities and the conference paper (available from the first author) discusses particular topics in terms of the balance between cognitive/metacognitive and affective influences (Baird et al., 1990) Specializations: science and technology education, interest and attitudinal change. Specialization: technology in the primary school.     

Gender-inclusive technology materials for the primary school: A case study in curriculum development

This paper describes how an idea for technology education materials developed into a process for producing unique curriculum modules for teaching technology in a gender-inclusive way to primary children. Using a case-study format, the paper describes the interaction between participants, the sequential evolution of the materials themselves and the degree to which success was achieved in terms of the original goals. The study demonstrates how an awareness of gender bias needs to be a feature from the earliest stages of curriculum development, through to the trialling and modification stages. The curriculum materials were a product of effective cooperation between teachers, science educators and community representatives. They utilise a “process” approach to the teaching of technology and in this presentation, we demonstrate how this same approach is a useful framework for describing this particular curriculum development. Specializations: primary science and technology education, gender issues. Specializations: diagnosis of student learning and teaching for conceptual change, technology education, curriculum evaluation. Specializations: affective aspects of science and technology education, gender issues.     

A case study of scientific reasoning

Concern is increasingly being expressed about the teaching of higher order thinking skills in schools and the levels of understanding of scientific concepts by students. Metaphors for the improvement of science education have included science as exploration and science as process skills for experimentation. As a result of a series of studies on how children relate evidence to their theories or beliefs, Kuhn (1993a) has suggested that changing the metaphor to science as argument may be a fruitful way to increase the development of higher order thinking skills and understanding in science instruction. This report is of a case study into the coordination of evidence and theories by a grade 7 primary school student. This student was not able to coordinate these elements in a way that would enable her to rationally consider evidence in relation to her theories. It appeared that the thinking skills associated with science as argument were similar for her in different domains of knowledge and context. Specializations: science learning, scientific reasoning, learning environments, science teacher education. Specializations: cognition, reasoning in science and mathermatics.     

Primary pre-service teachers' pedagogical reasoning skills

This paper discusses a preliminary investigation into primary pre-service teachers' pedagogical reasoning skills. Results from this investigation led to the development of a problem-based learning model which focused on improving primary pre-service teachers' pedagogical reasoning skills. The problem-based learning model uses pedagogical reasoning as the basis for creating problem situations for the pre-service teachers to investigate. The paper reports on pre-service teachers' views on the use of the approach to improve their pedagogical reasoning skills. Specializations: science teacher education, learning in science, chemistry education. Specializations: student learning, conceptual change, technology education, curriculum evaluation.     

Self-efficacy and science anxiety among preservice primary teachers: Origins and remedies

The preservice training of primary teachers is an opportunity to provide positive experiences which may ameliorate students' anxiety about science and science teaching, and enhance their beliefs that they may become effective science teachers. The previous and current science related experiences, and beliefs, of an intake of primary teachers participating in an introductory science content subject, were explored. Matter and energy concepts were major content components of the subject. Data were collected from pre- and post-test administrations of psychometric tests designed to measure students' science teaching self-efficacy, science related attitudes, interest in science teaching, and preferred learning environment. A randomly selected sample of students was interviewed at the commencement and finish of the subject. One third of the sample was assigned to a study group in which a constructivist approach to laboratorys sessions was adopted. The remainder of the sample experienced a more traditional transmissive format in laboratory sessions. Analysis of the quantitative data revealed no group differences in self-efficacy. Interesting contrasts between students evident in the data from the interviews facilitated the articulation of tentative assertions about the causative factors that may influence the development of students' sense of self-efficacy and possible science related anxiety. Specialisations: science teacher education, conceptual change, scientific reasoning. Specialisations: science teacher education, conceptual change, scientific reasoning.     

Pre-service teachers' use of problem-solving in primary science

The use of problem-solving in science instruction implies a change in the teacher's role from dispensing content information to encouraging critical reflective thinking in the student. For problem-solving to become an integral part of the science curriculum, teachers must make it the focus of their instruction. This study investigated the extent to which pre-service primary teachers used the problem-solving approach in their science instruction. It also identified the factors affecting their efforts to teach science using this approach. The issues considered are important in whether problem-solving becomes part of the science curriculum, as teaching behaviour influences student learning outcomes. Specializations: science eeducation Specializations: educational measurement, research methodology.     

Science and report writing

In recent years Australian primary schools have adopted an across-the-curriculum approach to writing. However, relatively little research has been conducted in the area of primary science. This paper reports the result of a small scale collaborative study involving a Year 2 and a Year 5 class, and their classroom teacher, which used science activities as the basis for developing report-writing skills using a framework consisting of three focus questions. Students in both classes learned to use the framework in one term and it was found that it improved the quality of reports. Specialisations: science and technology curriculum development, secondary and primary teacher education in agriculture, science and environmental education. Specialisations: cognition and curriculum, early childhood and primary teacher education in science and social education.     

A survey of pre-service primary teachers' experiences of science in schools

In 1990, a large proportion of third year primary trainee teachers at Victoria College had observed or taught very few or no science lessons during the first two years of their course. The students felt that a lack of content knowledge, a crowded school curriculum, and problems associated with managing resources and equipment, were the main factors contributing to the low level of science being taught in schools. By the end of their third year significantly more students had taught science than after the second year. There was also a change in approach to teaching science with more practical activities being included than previously. The science method unit taught to the students in the third year of their course contributed to this increase. The students considered the hands-on activities in class to have been the most effective aspect of the unit in their preparation for the teaching of primary science. Specializations: children's learning in science, primary teacher education. Specializations: student understanding of biology, evaluation of formal and informal educational settings. Specializations: gender, science and technology, environmental education. Specializations: children's learning in science, language and science.     

Outcomes of the primary and early childhood science and technology education project at the university of Canberra

The aim of the Primary and Early Childhood Science and Technology Education Project (PECSTEP) is to improve teaching and learning in science and technology of by increasing the number of early childhood and primary teachers who are effective educators. PECSTEP is based on an interactive model of teaching and systematically links work on gender with the learning and teaching of science and technology. The project involves: a year-long inservice program which includes the development of a science curriculum unit by teachers in their schools; linking of the preservice and inservice programs; and the development of support networks for teachers. Each phase of PECSTEP has been researched by means of surveys, interviews and the use of diaries. Research questions have focussed particularly on changes in: teachers’ and student teachers’ attitudes to teaching science and technology; their perceptions of science and technology; their perceptions of their students’ responses and their understandings of how gender relates to these areas. Specializations: primary science curriculum, science teacher education, sociology of science, technology and education. Specializations: gender and science/science teacher education, feminist theory, curriculum theory. Specializations: Science education research, curriculum development.     

VCE chemistry as a curriculum innovation

Conclusion The difficulty of sharing meaning of curriculum intentions between different groups is highlighted in this study. The acceptance of the novel features of the Chemistry Study Design is mixed. The longitudinal nature of the study helped to identify the difficulty teachers had in understanding the meaning of these novel features although the experiences of teaching units in the VCE chemistry course have enabled some teachers to shift in their construction of the meaning of the words and messages around them. Specializations: chemistry and science education, technology and industry links with sicence in schools. Specializations: science and technology curriculum, environmental education, educational disadvantage. Specializations: curriculum change, science career paths. Specializations: science education, computers in schools.     

Sci-Tec: Evaluating a non-deficit model of in-service

The Sci-Tec project was based on an interactive, non-deficit model of in-service in which the fundamental principle was to value the expertise of all participants, and to encourage them to share that expertise with others. As part of the unfolding of the project, the participants also identified various areas of need as they arose, and these too became elements of the in-service agenda. The model has proved to be robust when applied in a wide range of schools, and with teachers who originally expressed widely varying degrees of confidence and interest in teaching primary science and technology. Specializations: primary science in-service education, curriculum leadership Specializations: in-service and pre-service primary science and technology     

Introducing technology education to young children: A design,make and appraise approach

The National Statement on Technology Education will soon be released in Australia. The statement advocates adesign,make andappraise approach to technology education. The document includes Year One children and provides exemplars of curriculum activities for early childhood children. Although much curriculum development in technology education for primary and early childhood has taken place in the UK, little research has been conducted within the early childhood area in Australia. This paper describes a study which sought to investigate how thedesign,make andappraise approach could be implemented within early childhood using existing materials, procedures and teaching programmes. In particular, the pre-school programme was considered to see if the approach was suitable for young children, and if girls could be encouraged into this newly defined area of study. Specializations: early childhood science education, early childhood technology education.     

Student beliefs and learning environments: Developing a survey of factors related to conceptual change

This paper presents a model for the type of classroom environment believed to facilitate scientific conceptual change. A survey based on this model contains items about students' motivational beliefs, their study approach and their perceptions of their teacher's actions and learning goal orientation. Results obtained from factor analyses, correlations and analyses of variance, based on responses from 113 students, suggest that an empowering interpersonal teacher-student relationship is related to a deep approach to learning, a positive attitude to science, and positive self-efficacy beliefs, and may be increased by a constructivist approach to teaching. Specializations: secondary school science learning environments, writing in science, alternative frameworks, the language of science.     

Teaching portfolios: Developing quality learning in pre-service science teachers

The premise that underlies the pre-service science teacher education program at Monash University is the need to focus on the nature of learning in ways that encourage student-teachers to reconsider their conceptions of learning and how this relates to their view of teaching. The purpose of teaching portfolios is to act as a prompt for student-teachers to reconsider these conceptions and as a way of helping them to better articulate their professional knowledge. The Science (Stream 3) student teachers construct a portfolio of teaching strategies, episodes, ideas, etc. that demonstrate how they see their role as science teachers. The portfolio is ungraded, openended and organised as a dynamic assessment task, not just a static end product. This paper reports on student-teachers' understanding of, and approach to portfolios as they come to understand its purpose and value. Specializations: chemistry and science education, technology and industry links with science curriculum Specializations: science education, reflection, curriculum and evaluation     

Knowledge engineering: An alternative approach to curriculum design for science education at a distance

Most of the curriculum design models within the technical-scientific approach utilise the rational and sequential process of designing and inter-relating the various elements of the design process. While this procedure may be efficient and adequate for conventional education in which the designers are professional science educators, there is doubt if it satisfies the particular needs of distance education. The experience accumulated through a multi-disciplinary team approach to distance learning courseware development for higher education at the University of Southern Queensland Distance Education Centre motivated this study which primarily focused on a search for an alternative approach to curriculum development with a more satisfactory functional value. Using selected units in Engineering as a focus, an experiment was designed in which a variant of the classical Wheeler model was used. This paper reports the results of this experiment. The implications for contemporary curriculum development initiatives in science especially within distance education settings are pointed out. Specializations: science education, learning strategies, curriculum development, instructional design, research and development in distance education. Specializations: Cognitive Science, curriculum development, instructional design, expert systems, research and development in distance education. Specializations: science education, learning strategies, curriculum development, instructional design, research and development in distance education.     

Learning theories and environments: A student-initiated intelligent computer-assisted environment

Intelligent computer-assisted instructional systems have been constructed and applied within a wide range of fields. Very few of these systems make explicit a central or set of core learning theories or learning environments upon which a system is based. However, many of these systems have implicitly employed learning theories and environments. This paper looks at a variety of intelligent computer-assisted systems with a view towards uncovering the latent learning theories they employ. The interplay of the various learning theories needed to realise a student-initiated learning environment are discussed. The central features required for such an environment to function and the limitations of realising such a learning environment due to the state of the art of present day systems are also discussed. Specializations: physics education; computer education; intelligent computer-assisted instructional systems; physics problem solving. Specializations: chemical education, technology education, history and philosophy of science, learning theories.     

Science and technology management: Designing an undergraduate course

This research focusses on the role of science educators in preparing technically educated graduates for their careers. A comparison was made between the skills and abilities in science and technology students desired by industrial employers and whether New Zealand graduates exhibit these qualities. To address some of the management-based issues identified by the research, the design of a new Science and Technology Management course is outlined. Specializations: science and technology education, co-operative education, development of professional skills. Specializations: co-operative education programmes.