Faculty of Education - Theses
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ItemTeacher's management of learning in small groups in science classes( 1993)Established curriculum documents in Victoria recommend group work as an effective teaching strategy but the implementation and management of such groups is poorly understood by many teachers. This study investigated two management strategies which differed in the degree of role attribution amongst group members and the effect of the strategies on communication, behaviour patterns and achievement on a problem solving investigation. Students in three parallel year eight science classes from one school were observed over an eight week period. A low level and a high level management strategy were randomly allocated to each of two classes and used to manage group work. After four weeks the management strategies were exchanged. The third class, which was used as the control, was managed in a way which was more typical of a traditional science class. Randomly selected groups of students from each class carried out a practical problem solving investigation as a pretest, then again at the completion of the first four weeks (phase 1) and again after the completion of the second four weeks (phase 2). Student conversations within groups were recorded and coded to identify levels of communication types. Students' written reports for each test were assessed and scores analysed. Teachers completed an observation schedule to identify styles of leadership and types of group behaviour within each class. It was found that the use of the low level management strategy, in particular, did increase the relative frequency of communication at higher cognitive levels, those of conceptualisations, as compared with the control treatment. Problem solving skills as measured by achievement on the written practical investigation improved over time and there was a significant effect in the area of "making measurements" when the management strategies were used as compared to the control treatment.
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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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ItemAgency and communion in science teaching( 1991)The construction of the concept map assumes that the more closely two concepts are related in a person's cognitive structure, the more closely they will be placed on the concept map. In this research the Non-metric Multidimensional Scaling technique using ALSCAL (Alternating Least Squares Scaling) is used in the analysis of the concept map data, derived by surveying teachers from three different groups. Group 1 consisted of practicing teachers from a non-science background who taught Health and Human Relations. Group 2 consisted of Diploma of Education student teachers whose methods were Science and had completed their course though were not yet practicing teachers. Group 3 consisted of practicing teachers from a science background who taught Health and Human Relations. The results provide a basis for discussing the wisdom of practice, the maxim which provides reflective rationalization for the practices of able teachers. In this study, the wisdom of practice has been described with a focus on the responsibility of care. The findings of this study have confirmed those of earlier studies, in that it is apparent that experienced able teachers use their knowledge of what works in the class to organize their instruction. However, just what works is seen to depend on the subject the topic is taught in, as well as any perception of the subject held by teachers, students and the community. Teachers from each of the three Groups were able to organize their concept maps and provide satisfactory support material from transcribed interviews to indicate that the conceptual relations seen in the tension which exists between the concept of care and the concept of the academic is able to be described quantitatively.
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ItemOpening the door of the 6th form chemistry laboratory: a study of professional collaboration between a science teacher and an English as a second language (ESL) teacher in senior chemistry( 1997)True professional teacher collaboration has been limited by the institutional roles which are constructed for us and through which we view ourselves. This thesis is a narrative case study of teacher collaboration for the purpose of addressing the language learning needs of English as a Second Language students in Year 12 Chemistry classes. It explores the issues involved in the professional working relationship through the voices of a Science teacher and an ESL teacher over a two year period. This was done through transcripts of classroom teaching, analysis of teaching and learning materials produced, interviews and reflective journal writing. The study looked at the groundwork which took place to establish a school climate conducive to the collaboration in terms of the Habermasian interests; technical, practical and emancipatory. The emancipatory nature of the collaboration is explained in terms of the repositioning of the teachers with regard to each other, the students, the scientific and linguistic subject matter. By exercising power in their respective fields the collaborating teachers achieved a professional parity which allowed them to reflect on their practice and move beyond the static and ritualised institutional roles of a Chemistry and an ESL teacher. Through the interaction they established language as legitimate content in the science classroom and together explored new practices afforded by the adoption of a social constructivist epistemology. This research points to the emergence of a new more empowering professional development role for ESL teachers in the future. At the heart of this collaboration is a commitment to conversations about issues of fundamental importance in classroom practice which reconcile boundaries of differing departmental cultures and discourses.