The aim of this study was to evaluate the problem solving proficiency of Physical Science learners in Highveld Ridge East circuits in Mpumalanga Province of South Africa. The objectives of this study were to determine the relationship between proficiency in conceptual and algorithmic problem solving, to compare the percentage of algorithmic and conceptual problems that were correctly and incorrectly answered, problems not attempted at all and finally to categorize Physical Science learners according to their stoichiometry problem solving proficiencies. The target population for this study was Grade 12 Physical Science learners in Highveld Ridge East and West circuit in Mpumalanga Province of South Africa. To achieve the aim of this study and its subsequent objectives random sampling was used to select the three schools and the sample after a stoichiometry achievement test was administered by Physical Science teachers, who were teaching the participants at their respective schools. The researcher scored the tests using a memorandum. The results of this study indicated that learners’ proficiency in both algorithmic and conceptual problem solving was low, there was a weak positive correlation between algorithmic and conceptual problem solving proficiency, the percentage of solutions that were correctly solved was the lowest compared to the percentage of incorrect solutions and problems not attempted. The other result of this study was that there were no grade 12 Physical Science learners with high algorithmic and high conceptual abilities, a few learners had high algorithmic and low conceptual abilities and the majority of the learners had low algorithmic and low conceptual problem solving abilities. This implies that Physical Science teachers in these circuits should focus on developing both algorithmic and conceptual problem solving strategies when teaching stoichiometry. / Science and Technology Education / M. Sc. (Mathematics, Science and Technology Education)

This dissertation discusses the development of alternative science curriculum materials for a secondary schooling context where English, the medium of instruction, is a second language for both teachers and students. The research is located in an interpretative ethnographic framework and the data gathered during the classroom-based trialing of the materials highlights the vital role of language in the teaching and learning of school science. An interactive reading model coupled with a discourse approach to text analysis explores some of the language difficulties which black students experience with their science textbooks. That many students fail to develop adequate reading strategies is identified as lying at the heart of many learning problems. It is suggested that the key to comprehension is instruction from a base of more accessible text materials. Furthermore, although science practical work does not automatically advance students' knowledge and understanding, relevant and contextualised learning activities do equip students to become more self-directed and reflective learners of science.

Learners’ Physical Science performance in South Africa has been under discussion for several years, the challenge being that it has been exacerbated by continuous changes in the curriculum. Systems that have been put in place have yielded insufficient satisfactory solutions to both underperformance in the subject and sustainable good performance. Although interventions by curriculum policymakers have been ineffective, the issue at hand remains that teachers need to implement good teaching practices in order to ensure that all learners receive quality education. Physical Science teachers are custodians of a subject that may address scarce skills in the education system, so the quality of teaching must be optimised. Teachers need to implement intervention processes put in place by other stakeholders to reduce the negative perceptions that most people have about Physical Science. This study investigates how various factors related to the quality of teachers may affect the performance of Grade 12 learners in this subject. Since past studies have presented a broad spectrum of these factors, this study has categorised them as those directly related to teaching and those indirectly related to teaching. As a basis for data collection the researcher first established the overall status of the Physical Science teachers and investigated how the factors identified affect teaching. A mixed method approach was followed, and given the breadth of the study, available raw data was collected through questionnaires, interviews and observations. Data collected on factors indirectly related to teaching showed that these factors affect factors directly related to teaching and both of them affect the performance of the teacher, and consequently those of learners. These findings revealed that the performance of Physical Science cannot be based on one factor only, but on a combination of factors that are interrelated and should be integrated for effective teaching practices. Recommendations have been made to the National and Provincial Department of Education, District offices, school management teams and Physical Science teachers to reinforce other strategies that have been in place in order to improve or sustain good performance of the subject and to close gaps that have not been identified as possible intervention strategies. They include upgrading qualifications with the current content and methodologies to match the changing curriculum, restructuring workshops so that they are informed by the teacher’s needs, stabilising the curriculum to avoid many changes in short periods of time, retraining of teachers, relevant appointment of Heads of Departments (HoDs) into subject management positions, utilisation of support groups by teachers, proper management of the subject, proper screening of Physical Science learners and provision of teaching and learning resources. / Science and Technology Education / M. Ed. (Natural Science Education)

The study investigated South African Grade 10 Physical science learners’ reasoning about basic chemical phenomena at sub-microscopic level. The study adopted a non-experimental, exploratory and descriptive method and was principally guided by the ex-post facto research design using a concurrent embedded strategy of mixed qualitative and qualitative approach. A total of 280 grade 10 physical science learners in their intact classes and six of their teachers participated in the study. The 280 physical science learners comprised of 100 students from two top performing schools, 100 learners from two middle performing schools and the last 80 learners were drawn from two poor performing schools in Gauteng Department of Education’s Tshwane North District. A two-tier multiple-choice paper and pencil Test of Basic Chemistry Knowledge (TBCK) based on the three levels of chemical representation of matter was administered to the 280 physical science learners in their Grade 11 first term to collect both quantitative and qualitative data. In addition to the TBCK, focus group discussions (FGDs) with learners, teacher interviews and document analysis were used to triangulate data. The results revealed that most Grade 10 learners find it easy to identify pure elements and the solid state but find it difficult to negotiate between the three levels (macroscopic, sub-microscopic and symbolic) of chemical representation of matter. It became clear that learners experienced more difficulties in the concepts of basic solutions, acidic solutions, concentration and ionic compounds in solution. It also became apparent that some learners could not tell differences between a diatomic element and a compound indicating conceptual problems when they reason at particle level, and as a result they could not identify a mixture of elements. The results also indicated that the concepts of pure compounds and mixtures of compounds were not easy to comprehend as most learners took a pure compound for a mixture of atoms and a mixture of compounds for a mixture of elements. It is therefore concluded that learners find it difficult negotiating the three levels of chemical representation of matter. However, it is not clear whether the misconceptions the learners showed could be completely attributable to the concepts involved or the nature of the sub-microscopic models that were used in the test as it was also revealed that most teachers were not using sub-microscopic representations during instruction to enable learners to think at particle level. Furthermore, justifications to the multiple-choice tasks revealed lack of understanding of basic chemical concepts as well as language problems amongst learners as they could not clearly express their reasoning. Based on the results, some recommendations to educators, chemistry curriculum planners, teacher education and the chemistry education research field are suggested. / Science and Technology Education / D. Phil. ((Philosophy in Mathematics, Science and Technology Education)

The integration of knowledge and skills across subjects and terrains of practice is crucial for achieving applied competence as defined in the National Qualifications Framework (NQF) (Department of Education 2003:3).). Physical science underperformance has plagued out Further Education Training (FET) schools sector for some time and therefore this study which is directed at the possible causes of poor performance and to device strategies that could assist physical science teachers to teach more effectively addresses a crucial gap in the performance of the country’s education provision. Emanating from the above, this study focused on the impact of National Curriculum Statement principle in the teaching of physical science in Grades 10 to 12 around Sekhukhune district. The study looked at integration as a principle endorsed in the National Curriculum Statement and how this is implemented by teachers in the teaching of physical science in grades 10-12.A literature study on the impact of National Curriculum Statement principle in the teaching of physical science was undertaken. A qualitative approach was used to obtain data from Grades 10-12 teacher in FET around Sekhukhune district. Data were collected in the form of participant observation, semi-structured and focus group interviews. The results indicate that teaches had no clear idea of integrating the relevant concepts in the subjects they were teaching (physical science). It was also found that teachers did not receive adequate in-service training specifically targeting the principle of integration. The study recommends the professional development of physical science teachers. The study indicated that the continuum model of integration is suitable for the implementation of concepts integration. It is believed that if the continuum model of integration could be used and followed by teacher as a guiding principle in the integration process, the challenges experienced by teachers in this regard will be minimized. / Science and Technology Education / M. Ed. (Natural Science Education)

1. This pilot study is a survey of practices of natural sciences educators at Cape College of Education to establish if they reflect the conceptual development, development of skills, change of attitudes and values that are the pillars of the Outcomes Based Education (OBE). Their approaches of lecturing have been assessed to determine if they incorporate investigative approaches based on social constructivism, the theory underpinning Curriculum 2005. The status of science education in the college has been analyzed to establish whether the curriculum can adapt itself to the specifications of the new curriculum. It has been concluded that the educators at Cape College of Education need to be empowered about strategies that will help them function along the principles embracing Curriculum 2005 specifications. The educators have shown not to be ready to practice social constructivism and the assessment strategies incorporated in their programmes do not embrace a variety of approaches that will enable their learners to develop conceptually, skill wise and enable them to develop change in attitudes and values. Investigative approaches to practical work appear to be lacking in the college teaching/learning and this also indicates that Curriculum 2005 will take time to be properly implemented at Cape College of Education. 2. This study is based on the practices of science educators in the squatter-camp school in Khayelitsha, a densely populated area for blacks near Cape Town. Teachers at Vuselela primary school were interviewed about their teaching assessment strategies to establish whether they incorporate a learner centred approach, which is the necessity for the Outcomes Based Education approach. Also some of the lessons they taught were observed in order to find out whether they validate what transpired from the interviews through a process of triangulation. It has become evident that the teachers are to some extent aware of the changes the education system is going through in South Africa. It also became clear from the study that the teachers are still lacking expertise as to how to practice along the lines of Curriculum 2005, the South African version of Outcomes Based Education (OBE). They also showed that they are keen to learn and practice OBE even though more opportunities need to be created for their epistemological empowerment as well as empowerment on the content of science.

The research study was conducted at Ixopo High School, an English medium, former model-C, co-educational school in Kwazulu-Natal. The research is located within an interpretive paradigm and is informed by the constructivism theoretical framework. The learners and educators who participated in this research study did so voluntarily. The principal objective of this case study was to investigate the challenges faced by 30 Grade 10 Science learners in understanding the problems posed in the mechanics section of the Physics syllabus. This investigation was carried out using two learning strategies: problem solving and practical work. Various authors have noted some sections in the Physics syllabus are often misunderstood by the learners, for different reasons. From the literature and from the author’s personal experience it was found that mechanics is a topic that the learners of different races and age groups find difficult to conceptualise. In general, learners have misconceptions and make errors in Physical Sciences. Often educators view children’s errors and misconceptions in terms of low intelligence, low mathematical aptitude, perceptual difficulties or learning disabilities instead of attempting to discover the real causes of the errors. Educators need to find out why the learners make these mistakes, in order to help them. In most cases Mathematics forms a basic common element in scientific study. Hence, science learners need to be able to deal with numbers, operations, symbols and mathematical formulae. The term “science” embraces a very wide area of subject matter. Different learners will have widely differing interests within the many subdivisions of this field. This presents a problem when preparing learners for the scientific language they will need to study different branches of science. This implies that failure to understand the meaning of words or symbols inevitably impairs communication. The data analysed was collected using a variety of data collection tools. The main data generation tools were science tasks, structured interviews and group interviews and questionnaires. The analysis revealed that learners were lacking in mathematical skills and science register (terminology). Both first and second language English speakers encountered problems in science register but the study found that the problem was more pronounced in the latter. The findings of this study also highlighted that learners understand how to think mathematically when they are resourceful, flexible, and efficient in their dealing with new mathematical problems in mechanics. However, mathematical problem solving performance is built on the foundation of basic mathematical knowledge. The study suggested that even when the challenges of a general understanding of English as the medium of instruction and scientific language (register) are overcome, learners are still challenged by mathematical problem solving strategies; reading and writing of science; making meanings of symbols and signs; graphs and scientific mathematical equations in sense making of mechanics problems.

The performance of learners in Physical Sciences in South Africa has been very poor for a very long time because of lack of basic understanding of scientific concepts. Given this background, there is the need to conduct an educational research to find pedagogical ways to improve performance in Physical Sciences in the secondary schools. Hence, the proposed study aims to investigate the use of science resource centres and laboratories to improve Physical Sciences education in Mthatha. In the light of the literature review, a list of facts were acquired which were used to develop the questionnaire for the Physical Sciences learners and their teachers. Seven public and private high schools in Mthatha were selected for the study. Stratified simple random sampling was used to select respondents. The study followed a non-experimental quantitative design to collect data. The main instruments used were questionnaire and interview. The various responses were analysed and interpreted with the literature. It was found that, the use of science resource centre and laboratory activities, together with a more learner-centred approach to teaching would significantly improve learner performance in Physical Sciences. The necessary recommendations and suggestions were made. It is hope that these recommendations would be taken up by the appropriate bodies to ensure that the needed benefits are obtained from the science resources, and laboratories. In this way, the science and technological base of the nation as a whole is strengthened for its development. / Science and Technology Education / M. Ed. (Natural Science Education)

Poor Physical Science performance in South African schools is due to ineffective Physical Science teaching. Quality Physical Science teaching stems from quality Physical Science subject advisory services. Traditionally interventions to raise teaching standards were done by inspectors who established if schools functioned according to set rules rather that supporting teaching staff. School inspection was considered a fault finding mission with punitive objectives; hence principals and teachers were negatively disposed to it. The Department of Basic Education since has re-interpreted intervention from checking compliance to support and development of school personnel. This task is allocated to units in district offices in provincial Departments of Education and district staff members’ responsibilities are linked to responsibilities of principals and teachers. The subject advisory unit focuses on curriculum matters in each school subject; thus Physical Science subject advisors support Physical Science teachers with content, pedagogical content knowledge, assessment and Interventions for improved results. This study investigated the role of Physical Science subject advisors in enhancing the quality of Physical Science teaching. Requirements for employment of a subject advisor (qualifications, work experience, interest, attitude and competence), challenges and solutions were explored by a mixed method study. A Physical Science provincial DCES, Physical Science subject advisors, principals, Physical Science teachers in four districts and four PLC support groups were purposefully sampled to explore perceptions of the subject advisor’s role in improving Physical Science teaching. Quantitative data collected by document analysis and questionnaires and qualitative data collected by individual and focus group interviews were analysed. Findings showed that the Physical Science subject advisors possessed minimum qualifications and experience; however, the school subject (Physics and Chemistry combined) does not match the specialization in tertiary institutions (divided into Physics and Chemistry). Thus, some subject advisors may major in one of two parts. Further, certain school content is not included in the university syllabus. This may limit advisors’ content knowledge, the core of content support in Physical Science. This influences support offered to Physical Science teachers and requires advisors’ professional development which is not currently offered by the Department of Basic Education. Recommendations based on the findings include immediate and long term solutions to improve effective subject advisory. / Curriculum and Instructional Studies / D. Ed. (Curriculum Studies)

The integration of knowledge and skills across subjects and terrains of practice is crucial for achieving applied competence as defined in the National Qualifications Framework (NQF) (Department of Education 2003:3).). Physical science underperformance has plagued out Further Education Training (FET) schools sector for some time and therefore this study which is directed at the possible causes of poor performance and to device strategies that could assist physical science teachers to teach more effectively addresses a crucial gap in the performance of the country’s education provision. Emanating from the above, this study focused on the impact of National Curriculum Statement principle in the teaching of physical science in Grades 10 to 12 around Sekhukhune district. The study looked at integration as a principle endorsed in the National Curriculum Statement and how this is implemented by teachers in the teaching of physical science in grades 10-12.A literature study on the impact of National Curriculum Statement principle in the teaching of physical science was undertaken. A qualitative approach was used to obtain data from Grades 10-12 teacher in FET around Sekhukhune district. Data were collected in the form of participant observation, semi-structured and focus group interviews. The results indicate that teaches had no clear idea of integrating the relevant concepts in the subjects they were teaching (physical science). It was also found that teachers did not receive adequate in-service training specifically targeting the principle of integration. The study recommends the professional development of physical science teachers. The study indicated that the continuum model of integration is suitable for the implementation of concepts integration. It is believed that if the continuum model of integration could be used and followed by teacher as a guiding principle in the integration process, the challenges experienced by teachers in this regard will be minimized. / Science and Technology Education / M. Ed. (Natural Science Education)