Faculty of Education - Theses
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ItemA cartoon chemistry text : the construction and testing of a novel chemistry text incorporating human values( 1990)This study examines current science texts and the concerns and objectives of Science-Technology-Society based courses. It indicates that they present the public image of the practising scientist (with inherent Mertonian values of Universalism, Communism, Disinterestedness, and organized skepticism) which is used to organize scientific concepts into a meaningful whole. Utilizing the notion that a value is anything important to a student, a hypothesis was proposed that meaning and interest generated from a text is dependent on the extent of overlap between text and student values. The implications of the interaction of different value systems with a Mertonian based text were considered. An attempt was made to develop a chemistry text that was meaningful to all students, by organizing concepts into a story form with non-Mertonian organization. This approach evolved into a cartoon format with specific features. Two cartoon text items were tested at two schools. The trial involved a survey item on 103 students and audio taped interviews with 20 students. The trial attempted to evaluate the cartoon as a student text, attitudes to issues content, and styles of resolving issues based conflicts. The results were interpreted by classifying the respondents into four categories of science likingness ( A, B, C, D) on the basis of Year 11 subject choice, and favorite subject. It was assumed that the accommodation of Mertonian values by a group reflected the science likingness of the group. The cartoon text was well received with most students wishing to see more cartoons, and being able to answer questions from the text. The B, C, and D groups expressed a preference for the cartoon text over their current science text. The proposed differential accommodation of values appeared to account for the greater enthusiasm of the B and C groups for the cartoons than the A and D groups. Perceptions of the amount of current social problems/ issues content in science teaching increased markedly with group science likingness. The amount of issues content desired decreased with increasing group science likingness. A belief that scientific solutions could resolve social problems/ issues, showed a marked decrease with decreasing science likingness. A value model of cognitive style was developed from the basic hypothesis and assumptions regarding the extent of accommodation of Mertonian and Humanist norms as personal values. This model seemed to account for variations in meaning generated for the various groups in response to both the standard and cartoon science text format.
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ItemSenior school chemistry in Victoria: syllabus prescription and pressure for change( 1984)A few key ideas have dominated the senior school chemistry syllabuses in Victoria. Despite pressures for change, and disclaimers to the contrary at various times, the Victorian course developers have shown a constant commitment to chemistry as an academic discipline, to the exclusion of most if not all of the societal, cultural, historical and economic aspects of the subject. In this thesis, an understanding of present courses in terms of past practice has been sought through a study of the ideas which have influenced syllabus design at various times. Some purchase on the exercise of change in school syllabuses, on the possibilities and limits to change, was obtained, although no prediction of future directions could be attempted. At the outset a decision was taken to concentrate the investigation on materials published principally for the direction of teachers whose task it was to prepare their classes for an externally set and assessed examination in chemistry. Thus, in this thesis, attention has focussed on the expressed intentions of the course developers in Victoria, as outlined in syllabuses, Course of Study and Scope of Course statements, and commentary in Circulars to Schools. Data extracted from these documents was supplemented with material from the recommended textbooks and Reports of Examiners. The former provided an extended coverage of material prescribed in the syllabuses, offering more insight into teaching sequence and depth than could, at this remove, be fairly inferred from syllabus documents alone. Commentary in the Reports of Examiners revealed more of the expectations of examiners and course developers than was apparent from the syllabuses alone. The correctives suggested by the examiners for a range of perceived shortcomings gave an indication of what was seen at various times as appropriate in schools courses. The examination papers themselves were not analyzed except for a few specific items. Although examinations have without doubt served to direct and limit teaching practice, this has not been their primary function. Selection of content, and methods of teaching specific items of content, and trends in course changes, were compared with contemporary practice in England and the United States. Chemistry method textbooks proved useful here as those available were spread approximately evenly across the whole of the period of the survey. Journal articles, except for those few which reported historical material, tended to be concentrated in the latter quarter of the century, 1955 to 1980, thus affording a much better coverage of ideas extant during that period than was the case for the earlier years. The syllabus in action, in terms of classroom practice, facilities and management, was not considered as part of this study. These factors assumed significance only in so far as they imposed limitations on the course developers. Those decisions taken revealed, in the syllabus but more so in commentary documents, the rationalization of an idealized conception of the discipline of chemistry into a form fit for school use. The view taken in this thesis was neither strictly historical nor chronological. No attempt was made to fully document the development of chemistry as a school level subject in this state. Past practice, and current overseas practice, were used rather to construct a context in which the most recent course changes in Victoria could be explained. In commenting on syllabus change, it has proved easier to identify past shortcomings than to point to a direction for the future. Trends, even though well established, can be and have been reversed. An aim shared by course developers in different countries is susceptible to quite disparate interpretations, resulting in courses with little in common. Further, as this research has been limited to publicly expressed intentions in official documents, it allowed only indirect reflection on purposes and reasons for decisions. A study complementary to this thesis in which particular periods were dealt with in greater detail, could examine the hopes and frustrations of those individuals who assumed the responsibility for the development of school level chemistry courses in Victoria. From both sorts of consideration of the studies a society chooses to impose on its children, some insight into the nature of that society and its culture could be gained.