A research report in part fulfilment of the requirements of an MSc in Science Education at the University of the Witwatersrand / This study reports the findings of a research project in a DET (Department of Education and Training)* school in Mamelodi, South Africa, in 1995. An investigrtion was carried out to ascertain whether students benefit from having access to science definitions in their vernacular, and to determine their preference in terms of the medium of instruction in the science classroom. A Science Concept Guide, written at RADMASTE** Centre, was used as the main component of the intervention in a pretest - post-test study. This was followed by student questionnaires and interviews. The Concept Guide consisted of definitions and explanations of Physics and Chemistry concepts arranged according to themes. These explanations were translated into North Sotho. Two groups of Std 10 students participated in the evaluation of the Concept Guide. One group used an English version of the Concept Guide and the other an English and North Sotho version. The differences between the pre-test and post-test scores of each group were compared. The results indicated that a significant improvement in scores had occurred in the English and North Sotho Group. Interview results showed that a number of students were in favour of having learning material of this sort available in their vernacular and claimed that they had found it helpful. In general, both groups expressed favourable comments about the Guide. Opinions about medium of instruction varied. Overall, findings indicate that further efforts in the development of vernacular material for the learning of science would prove beneficial. Although the area of policy decision is outside the scope of this study, it hopes to contribute in some way to the knowledge about the preferred medium of learning in South Africa. / Andrew Chakane 2018

The purpose of this proposed research study was to identify actual teaching practices/instructional strategies for online science courses. The identification of these teaching practices/instructional strategies could be used to compile a set of teaching practices/instructional strategies for virtual high school and online academy science instructors. This study could assist online science instructors by determining which teaching practices/instructional strategies were preferred for the online teaching environment. The literature reviewed the role of online and face-to-face instructional strategies, then discussed and elaborated on the science instructional strategies used by teachers, specifically at the secondary level. The current literature did not reflect an integration of these areas of study. Therefore, the connectedness of these two types of instructional strategies and the creation of a set of preferred instructional practices for online science instruction was deemed necessary. For the purpose of this study, the researcher designed a survey for face-to-face and online teachers to identify preferred teaching practices, instructional strategies, and types of technology used when teaching high school science students. The survey also requested demographic data information from the faculty members, including years of experience, subject(s) taught, and whether the teacher taught in a traditional classroom or online, to determine if any of those elements affect differences in faculty perceptions with regard to the questions under investigation. The findings from the current study added to the literature by demonstrating the differences and the similarities that exist between online and face-to-face instruction. Both forms of instruction tend to rely on student-centered approaches to teaching. / There were many skills that were similar in that both types of instructors tend to focus on implementing the scientific method. The primary difference is the use of technology tools that were used by online instructors. Online instructors tend to rely on more technological tools such as virtual labs. A list of preferred instructional practices was generated from the qualitative responses to the open-ended questions. Research concerned with this line of inquiry should continue in order to enhance both theory and practice in regard to online instruction. / by Tammy J. Gillette. / Thesis (Ed.D.)--Florida Atlantic University, 2009. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2009. Mode of access: World Wide Web.

This study examined the student's achievement, attitude toward science, and self-concept of ninth grade physical science students in an individualized science program and ninth grade physical science students in a traditional science class. The research was conducted to ascertain the effect of individualized instruction upon the achievement, attitude, and self-concept of inner-city junior high school science students, and to analyze the implications of these effects for administrators, teachers, counselors, and others who are interested in the optimum achievement of students to science instruction. The sample size was 150 ninth grade physical science students enrolled in an individualized science program and 150 ninth grade physical science students enrolled in a traditional program. The students were administered the Stanford Achievement Test: Science, Remmer's Attitude Toward Any School Subject Scale, and the Piers-Harris Children's Self-Concept Scale. The experimental design of the study was patterned after the posttest only control group design. Preliminary data were obtained for each student within each participating class. The preliminary data were used for establishing group equivalence and as a concomitant observation in the analysis of covariance. The preliminary data were obtained from the permanent records of each participating school and involved the student's age, I.Q., natural science achievement level, and composite achievement level. From the data found in this study and in the related research, the following conclusions were drawn: 1. Physical science students taught by the individualized science program do not achieve at a significantly higher level, as measured by a standardized achievement test in science, than do students taught by the traditional method. 2. Physical science students taught by the individualized program do not differ significantly from the students of traditional physical science in attitude toward science. 3. Physical science students taught by the individualized program do not differ significantly from the students of traditional physical science on a standard self-concept scale. 4. The student variables of I.Q., background in natural science, and composite achievement level are important factors in successful achievement in physical science. 5. The student variables of I.Q., background in natural science, and composite achievement level are important factors in attaining a high positive attitude toward science. The I.Q. of the student seems to be the most important of the above factors. 6. The student variables of I.Q. and natural science achievement are important factors in attaining a high self-concept. 7. There was a significant relationship between grade point average in science and student achievement in science. 8. There was a significant relationship between grade point average in science and attitude toward science. 9. There was a significant relationship between grade point average in science and self-concept.

This study explores the use of wiki in supporting a science project undertaken in a Hong Kong secondary school through a mixed method approach involving triangulation of questionnaire survey, interviews, and analysis of students? wikis. The findings showed positive results on students? motivations, enjoyments, effort input, and perceived value. More important, the results highlighted the fact that satisfaction of students? perceived needs from teacher?s autonomy support improves their attributes, attitudes, and expectations of learning outcomes in general. The researcher identifies a discrepancy between students? expectations and their actual achievements of the learning outcomes. Specifically, students think in a higher order and construct knowledge at a wider level when comparing with what they have expected whereas their expectations of generic skills development significantly outweighed what they have actually achieved. To bridge this discrepancy, the researcher suggested that (a) flexibly balancing the structure and freedom of wiki, (b) carefully planning the project duration, (c) scaffolding in wiki project, (d) carefully choosing of the project topics, (e) explicitly emphasizing the learning outcomes, and (f) raising students? information literacy are all essential. The findings also indicated the exists of limitations in this small scale study and thus further investigations on the pedagogical challenges of integrating wiki in science project learning are required. / published_or_final_version / Education / Master / Master of Science in Information Technology in Education

published_or_final_version / Education / Master / Master of Education

published_or_final_version / Education / Master / Master of Philosophy

The study looks at Lesotho Science teachers' understanding, practice and explanation of learner-centred education (LCE) prior to, during and after different activities. Six Physics teachers from Maseru were selected from 20 who attended an initial meeting and workshop. The selected teachers participated in the research for two years, completing a Baseline Study, then 3 cycles of planning, acting, observing, and reflecting in the action research on LCE. During the Baseline Study and each of the action research cycles, the teachers' explanations, understandings and practices of learner-centred education were determined through analyses of discussions and meetings, lesson plans, classroom practices, responses to the literature and other support activities, and interviews with the teachers. The process was collaborative, with the teachers and the researcher working as a team in the planning, observations of classrooms, reflections and analyses. The teachers changed their understanding and practices significantly in the course of the study. Consistent with the Concerns-based Adoption Model (CBAM), their primary concerns shifted from classroom management issues and impediments to learner-centred education in their schools at the start, to adaptation, innovation, and conducting teacher-workshops at the end. Early in the project, they opted for a model of learner-centred education comprised of three levels: caring for learners and their learning; adopting learner-centred teaching methods and allowing learners to influence the content and desired outcomes of the learning. During the research, within the team and in classrooms, the teachers developed each of these levels, though they applied the third level more in their own learning as part of the action research, than in their classrooms. At the end, the teachers co-constructed a model of LCE which they felt was doable under the conditions in Lesotho (including school constraints and competing demands on teachers and curriculum), and which would meet the expectations of principals, parents and learners. The teachers changed not only in their professional knowledge and skills, but in social-professional and self-professional aspects. For example, they began inviting other teachers to observe their classes, they conducted workshops in their schools, and enrolled for higher degrees. The teachers persisted with the study for two years, not because of school expectations or pressures, but because they wanted to participate. Their motivation was high, arising from a mix of personal, professional, career and school factors. Their motivations shifted during the research, as their knowledge and concerns changed, and they came to see different opportunities from what they had imagined at the start. Through participation and collaboration, they extended the objectives and outcomes of the study beyond its initial focus on learner-centred education in classrooms: they defined and addressed their own personal, social and professional interests. The data demonstrated that teachers' engagement with in-service activities that provide for long-term project-based learning, critical collaboration, support and reflection, can bring personal and group change more significantly than in conventional district and national workshops. / Theses (Ph.D.)-University of KwaZulu Natal, 2005.

The literature review shows that student alternative conceptions or misconceptions are important for teaching and learning. Causes of such student difficulties may include the counter-intuitive nature of some chemistry concepts or to instruction itself. However, over 30 years research into student conceptual difficulties has had little impact on teaching and learning chemistry. In this study, a critical analysis and synthesis of published research into student conceptions in acid-base chemistry was carried out in the naturalist nomothetic paradigm using a constructivist framework. Historical models which were included were an operational macroscopic model and the theoretical Arrhenius and Brønsted models. Firstly, a comprehensive search strategy with defined inclusion/exclusion criteria identified 42 suitable reports which were mostly peer-reviewed. The identified research was not limited to Anglophone countries although Africa and South America were underrepresented and research among secondary students predominated. Then a critique of the research showed it was of variable quality and often poorly reported. An outcome was a set of guidelines for research into student conceptions. The variable quality and reporting of research then also necessitated a four-level framework to reflect the stability of descriptions of student difficulties. A new method for synthesis of descriptions of student conceptual difficulties was developed which entailed mapping qualitative data on the difficulties, which had been extracted from research publications, to propositional knowledge statements derived in this study. This was an iterative process which simultaneously honed descriptions of difficulties and illuminated propositional knowledge implicated in them. The second major outcome was synthesized descriptions of 10 student difficulties with acid-base species, 26 difficulties with acid-base properties and 17 difficulties concerning terminology and symbolism particular to acid-base chemistry. Some conceptions were also found to have been mis-reported as ‘misconceptions’. The difficulties could be broadly due to student conceptions concerning acid-base models, or students not relating empirical observations to theoretical models or their poor understanding of underlying chemical principles. Some difficulties were found to have been over-researched, while further work was needed to clarify the nature some difficulties with conceptions of bases, acid-base reactions, and symbolism used in acid-base chemistry. The third major outcome from the synthesis was 218 propositional knowledge statements which were shown to be suitable for teaching high-school students, avoided hybrid historical models and were acceptable to expert chemists. These propositional statements were integrated as a set of 11 concept maps. The maps showed the hierarchy and interconnectedness of concepts as well as the propositional links which had been implicated in the difficulties. Furthermore the concept maps indicated critical concepts where teaching in each topic should focus as well as cross-linked concepts that can be used to integrate different aspects of the topic. Accordingly they contribute to PCK in the acidbase topic as they represent the fine-grained yet well integrated conceptual knowledge characteristic of a teacher with highly developed PCK. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2009.

The role of science education is to pass on knowledge and understanding of science and its practices to learners. Learners' perceptions of science should therefore reflect those of the scientific community. The purpose of this study was to establish if learners in one South African school shared nature of science views common to the scientific community. Two key questions framed this study: What are learners' perceptions of the nature of science? and What are learners' perceptions of science within the context of their daily lives? Quantitative data was collected using a cartoon-style questionnaire to address the first research question. Qualitative data was collected from a photographic activity in which learners were asked to take photographs of science within the context of their daily lives and offer explanations of why the photographic images were representations of science. This qualitative data was used to address the second research question and map out more fully the complexity of learners' perceptions of the nature of science. The findings of this study point towards a blur between learners' perceptions of science and their perceptions of technology and provide evidence that learners' perceptions of the nature of science are inadequate. However, this study also provides evidence to suggest learners do share some nature of science views with the scientific community. The findings of this study also lend support to the argument that the learning of science should involve an explicit initiation into the culture of science. This study is a grassroots account of some attempts to include the nature of science construct within learning programs. It is simply a snapshot of what happened in one South African secondary school at the cusp of curriculum change, a collection of learners' perceptions of science captured on film and an insight into some learners' perceptions of the nature of science. / Thesis (M.Ed.)-University of Natal, Durban, 2003.

This research project, using a qualitative case study methodology, reports on the appropriateness and implications of using group work in promoting cooperative learning in science. In this study, group work is seen as providing a social support mechanism for learning through interactive "hands-on" activities, designed to give learners opportunities to discuss and share ideas so that they can grasp science concepts. The Science Olympiad Project class composed of approximately thirty-six (36) learners formed the case study for this unit. The Science Olympiad Project is a project concerned with the promotion of science in the primary schools in Grahamstown. From this group, twenty two (22) learners (12 girls and 10 boys) were interviewed and kept journals. The Science Olympiad facilitator (a science teacher from one of the schools involved in the project) and two teachers who attended the science classes and whose learners are part of the project were interviewed. Semi-structured interviews, journals kept by the learners and the researcher (who was a participant observer and a co-facilitator), observations and discussions constituted sources of data for the research project. The analysis of data indicated that the learners found science during the Science Olympiad Project classes interesting and challenging. There were many benefits reported by the learners including the use of group work, the effect of "hands-on" activities, their attitudes and perceptions towards science and the role of excursions. Teachers found the learner-centred approaches adopted helped to encourage the learners to be actively involved in their own learning. One concern raised by the teachers was what would happen to those learners who have been identified as enthusiastic in science when they go to secondary schools. The implications of the results to improve and sustain the project are discussed.