published_or_final_version / abstract / toc / Education / Master / Master of Education

The fewer numbers of girls that take part in Mathematics and Science programmes than those of boys in Namibia prompted this study. Few Namibian students pass Grade 12 Mathematics and Science with symbols required by the University of Namibia and other higher educational institutions in Africa and abroad. When the numbers of male students and female students who graduate both at secondary school and university levels are compared, it becomes clear that very few female students graduate. The study investigated how socio-cultural factors influence girls’ participation in Mathematics and Science. Information used in this study was collected from 1442 girls from 14 schools in Hardap and Khomas regions. Literature has demonstrated the importance of self-concept, motivation and influence from parents and teachers as imperative factors for a change in girls’ perceptions of Mathematics and Science. The analysis showed that both beliefs and attitudes of girls are negatively influenced by some cultural and traditional norms. Additional barriers include lack of support from parents, teachers and peers as well as the masculine face that is given to Mathematics and Science. The investigation also revealed the need to motivate girls from an early age. This can be done by empowering and preparing them socially, physically and mentally in these fields. Motivating female students can also be achieved with the help and support from parents, teachers and the entire education sector. / Further Teacher Education / M. Ed. (Natural Science Education)

The aim of the study was to investigate the impact of curriculum change in teaching and learning of science subjects at schools in Vhembe District. The research also meant to answer the following research objectives on the impact of new changes in curriculum. The first research objective was based on the effects of curriculum changes in the teaching and learning of science. The second research objective was based on the constraints or factors that might be affecting the effectiveness of new changes in teaching and learning of science. The third research objective was based on the monitoring and support on the new changes in science curriculum. Research objective four was addressed as a recommendation. It was about the suggestion for future planning of changes in curriculum. In this era of on-going new developments in curriculum, it was imperative to find out how new changes are affecting teaching and learning of science curriculum even in the most remote parts of the country. The continuous changes that are taking place in science curriculum demand the need for this research. Questionnaires, interviews and observation were used as data collection methods using the qualitative method. Schools which participated in the study were selected using purposive sampling. It is revealed in the findings that teachers feel that it is not necessary for them to change the way they teach, especially those who did not receive training on the new curriculum changes during their tertiary education. The findings also indicate that lack of resources impact negatively on the implementation of curriculum reform in teaching and learning of science in many under-resourced schools in rural areas. The findings also reveal that, it is not easy for subject advisors to give relevant support because of inadequate resources and lack of human capacity. According to the research findings, inadequate resources, skills and knowledge and lack of pre-planning on new curriculum development adversely affect the teaching and learning of science in schools. It is therefore recommended that the proposed curriculum development and reform be piloted before it is implemented as proposed in the model for the preparation of effective curriculum changes and development in science. Also, it is important to have functional curriculum support forums at school, circuit and district levels. The provisioning of science centres with well-equipped laboratories in each and every circuit will play a greater role in effective teaching and learning of science in schools. / Science and Technology Education / M. Ed. (Natural Science Education)

Die tesis is voorgelê ter verwerwing van die graad: Magister in Opvoedkunde aan die: Cape Peninsula University of Technology, 2012. Afrikaanse abstrak: Hierdie navorsing het die gebruik van probleemoplossings-onderrigtegnieke deur onderwysers in die Rekenaartoepassingstegnologie (RTT) –klaskamer ondersoek. Kriteria ten opsigte van probleemoplossingsvaardighede soos uiteengesit in die Nasionale Kurrikulumverklaring (NKV ) en die Nasionale Kurrikulum- en Assesserings- Beleidsverklaring (NKABV) vir RTT was toegepas in hierdie studie. RTT word slegs vanaf graad 10 in die verdere onderwys- en opleidingfase (VOO) as „n keusevak aangebied. Dus was die navorser se fokus op die omliggende sekondêre skole wat RTT aanbied. Die navorsing konsentreer op die onderwyser en sy toepassing van probleemoplossings-onderrigtegnieke. Die navorser het gebruik gemaak van gevallestudie as navorsingsontwerp en konstruktivisme as raamwerk toegepas. Klaskamer-observasies, onderhoude en beide formele en onderwyser - geskepte dokumente het gedien as bronne vir data. Die data was tematies ontleed om die betekenis daarvan te ontgin. Die analise van die data dui aan dat respondente nie aan die vereistes gestel deur die NKABV en NKV, ten opsigte van die aanbieding en assessering van probleemoplossings-onderrigtegnieke, voldoen nie. Die navorser beveel aan dat „n moontlike oplossing vir die onderwyser-respondente se gebrek aan kennis en onderrigvaardighede met betrekking tot probleemoplossings-onderrigtegnieke kan wees dat daar spesifieke kursusse oor hierdie onderwerp aangebied word. Die navorsing skep ook ʼn geleentheid vir tersiêre instellings om hulle kurrikula en opleidingsprogramme sodanig aan te pas ten einde die leemtes, soos uitgewys deur die navorsing, aan te spreek. / This research explored the utilization of problem solving techniques by Computer Applications Technology (CAT) teachers in grade 11. The requirements and criteria as set out in the National Curriculum Statement (NCS) and the National Curriculum and Assessment Policy Statement (CAPS), were applied in this study. CAT is only introduced in grade 10 in the Further Education and Training (FET) phase. The researcher thus focussed on the surrounding schools that offer CAT as a subject. The research focussed on the teacher and the teaching of problem solving techniques in CAT. The researcher used a case study design and employed a constructivism as the theoretical framework. Classroom observations, interviews and both teacher generated and formal documents served as data sources. A thematic analysis approach was adopted to make sense of the data. The analysis of the different data sources indicated that the respondents did not fully comply with the requirements set by the NCS and CAPA with reference to the teaching of problem solving techniques in CAT. The researcher recommends that courses are presented to address the gaps in the knowledge and skills of teachers in CAT referring to problem solving techniques. This creates both the opportunity and challenge to tertiary institutions to align their curricula and training programmes to address the gaps identified by this research.

The National Curriculum of Education was implemented with the broad view of including all learners as laid out in the document Toward Education for All. The curriculum emphasised that the topic distillation should be studied. According to the Examiners Reports, the topic distillation is one of the topics where learners face difficulties in the Namibian Senior Secondary Certificate Ordinary (NSSCO) examination Grade 12. This led me to do research on understanding how Physical Science teachers mediate the topic distillation in Namibia specifically in the Kavango region. The study was carried out at two rural schools with two teachers teaching Grade 11. The community member who I asked to demonstrate the making of Kashipembe was also a participant during this study. Kashipembe is a local cultural brew alcohol beverage commonly made in the Kavango East and West Regions of Namibia, which was used as a learning context in this research study. The study used a qualitative case study underpinned by an interpretive paradigm. Data was generated through the use of document analysis, semi-structured interviews, stimulated recall interviews, lesson observations, brainstorming and practical demonstration of making Kashipembe. These different methods of data gathering were used with the aim of triangulating and validating the data. Therefore, my theoretical framework adopted Vygotsky’s (1986) mediation of learning, social constructivism and pedagogical content knowledge according to Shulman’s (1986) theory. The emergent themes were identified inductively and they were colour coded. These themes were later developed into analytic statements which were used in the study. The findings indicate that the use of community knowledge and experience during the teaching of scientific concepts like distillation is important. These findings can also be used by the practising teachers to make their teaching more effective in the curriculums where distillation is included. Therefore, the Namibian curriculum developers need to include this community knowledge in the curriculum to make it easier for the learners to make sense of the topic distillation.

Stoichiometry is proven to be one of the difficult topics for learners in the NSSC Physical Science syllabus due to its abstract nature. Over the years the Examiner’s reports reveal that learners' performance is very poor in this topic. In addition, learners fear the topic and have developed a negative attitude toward it. It is against this background that I decided to carry out a qualitative case study; investigating how teachers mediate the learning of stoichiometry. The study was conducted at two schools in the Oshikoto Region, Namibia and it involved two grade 11 Physical Science teachers. The study is located within the interpretive paradigm and made use of interviews, document analysis and lesson observations (which were video-taped and transcribed) followed by stimulated recall interviews to generate data. The generated data were analyzed using the inductive approach whereby themes were identified. The themes were later used to develop analytical statements in relation to my research questions and these were used to interpret the data. Moreover, the study adopted the notion of pedagogical content knowledge (PCK) proposed by Shulman (1986, 1987) as well as Vygotsky's (1978) mediation of learning and social constructivism as the theoretical frameworks. The data were validated by triangulation, member checking as well as using the stimulated recall interviews while watching the videos with each participant. The findings of the study show that teachers use several tools to mediate the learning process and this includes the use of language, learners' prior knowledge and analogies. In addition, it emerged in this study that teachers are faced with a number of challenges when mediating learning of this topic. Hence, the study recommends that teachers should develop their pedagogical content knowledge for them to effectively eliminate the challenges faced as well as to come up with the best teaching strategies which they can use to mediate learning and help learners make sense of the topic stoichiometry.

This study was conducted in Grahamstown in the Eastern Cape, South Mrica. Triggered by the demands of South Mrican post-apartheid curriculum transformation, the study focused on establishing a sustainable science teachers' trans formative and continuous professional development (TTCPD) network with the view to improving their practice. It is premised on the assumption that teachers are capable of taking responsibility for their own professional development. It is a case study carried over a period offour years with a group of eight teachers. Rooted in the socially critical-emancipatory orientation in conjunction with the participatory action research approach, and located in the qualitative and interpretive research paradigms, it focuses on doing research in democratic and egalitarian ways through working with teachers rather than on them. Such a stance supposes a collaborative partnership and a dialogic relationship viewed as being both reciprocal and mutually enriching for the teachers who were seen as co-learners and co-researchers in this study. Two main goals of the study may be identified. For the first goal, the actors in this study established a sustainable and participative approach to professional development. This was explored through the formation of a TTCPD network which was informed by the actor-network theory framework. Our focus was on co-construction of scientific knowledge utilising the development and adaptation of learning and teaching support materials (LTSMs) as a catalyst to drive the process. The second goal was to examine how the TTCPD network enhanced the teachers' subject-content knowledge, pedagogical-content knowledge as well as individual and collaborative reflections. The research process evolved into three mam phases: The initial phase involved adapting and modifying LTSMs which were initially used in conjunction with microscale science kits and pilot tested with a group of Grade 10 students. This led to the second phase of the research project, which was aimed at gaining insights into the science teachers' capabilities in developing teaching and learning units of work. ii \ The second phase focused on the development of a collaborative orientation to the development of LTSMs and culminated in the formation of sub-networks responsible for certain tasks within the broader network. AB common ground, we focused on developing teaching and learning units of work on the following science topics: electrostatics, electricity, and electrochemistry, to illuminate and foster integration within science. The third phase was concerned with gaining insights into the science teachers' practice in their classrooms. This phase focused on putting theory into practice through the collaborative implementation of teaching and learning units of work. Feedback on the lessons was discussed during our workshops as an attempt to further enhance collaborative reflections. Data was generated usmg workshop discussions with reflective notes; active interviews; focus group discussions; co-teaching, participant observation and videotaped lessons with reflective notes; and a research journal. A variety of data generation techniques were employed to enhance validity and quality of the research. Techniques for validation and trustworthiness of data included triangulation; member checks orface validity; prolonged engagement; catalytic validity and peer validation. The study exposed the underlying historical, ideological and epistemological contradictions of the teachers' past educational backgrounds. It emerged that the ways in which they were taught were at times an inhibitor to innovativeness, perpetuating transmissive approaches to teaching and learning. Lack of professional development and support, and the tensions between policy formulation and implementation exacerbated this. Reflections from the teachers' experiences further revealed that, for teachers to be effective agents of change in the reform process, empowerment opportunities are vital. AB a result, exposure to the TTCPD network was useful in capacitating the teachers with the development of LTSMs, which led to the enhancement of their pedagogical, and science content knowledge conceptual development as well as collaborative reflections.The main findings of this study is that, science teachers' transformative and continuous professional development based on participative approaches and mutual collegial support are indispensable, and that teachers' socio-cultural contexts and experiences should be taken into consideration during this process. Teachers should be regarded as central in the process, and mutual respect and dialogical relationships are pivotal. A further recommendation of this study is that capacity-building is critical for quality teaching and learning, and there is a need to move beyond the rhetoric of complacency to pro-activism, supporting ongoing development of teachers in professional transformative networks. / KMBT_363 / Adobe Acrobat 9.54 Paper Capture Plug-in

This study investigated the effects of chemical concept understanding level on students’ achievement in biochemical topics (photosynthesis, respiration, diffusion and osmosis, carbohydrates, protein, fats and enzymes) in some selected secondary schools in Delta State of Nigeria. The study made use of mixed method research approach. Quantitatively, the design of the study was quasi experimental non-randomized pre-test and post-test control group design. A case study Embedded Design was adopted to take care of the qualitative aspect of the mixed method study. Kuder-Richardson formula 20 (K-R20) was used to calculate the reliability coefficient of the test. The internal consistency of reliability co-efficient was calculated to be 0.76 that made the instrument to be accepted as reliable for the study. The population of this study consisted of all senior secondary (II) biology students in the twenty (25) local government areas of Delta State of Nigeria. Six secondary schools randomly selected from the three senatorial districts of the State were used for the study, with three (3) schools for experiments specially taught with emphasis on both ideas (concepts) and skills, problem-based interactive learning ensuring concept connections and the other three (3) for control groups. Intact classes were used for both groups. The intact sample was made up of five hundred and ninety two (592) students for the quantitative study; while two teachers and four students were purposively sampled for the qualitative aspect of the study. Four (4) research questions were raised and answered and four (4) null hypotheses were formulated and tested at 0.05 level of significance. The research instruments used were the Test of Students Understanding of Chemical Concepts (TOSUCC), Biology Achievement Test (BAT) which measured achievement in biochemical topics and Interview Schedules for both teachers and students. The quantitative data collected were analysed using Analysis of Covariance (ANCOVA) for the hypotheses and mean ratings for the research questions; and the qualitative data were analysed by coding and themes generation and interpretations. Findings show that the experimental group performed better than the control group in the biochemical topics. An effect size of Cohen`s d equal to 0.996 was determined from the mean scores and standard deviations of the experimental and control samples for the study. Therefore, the experimental group had better achievement because determined effect size seemed large enough in favour of the treatment group. No significant interaction effects of gender and location on students` level of achievement in both experimental and control groups were established by the study. The teachers in particular should use the outcome of this study to improve on their teaching, emphasizing on concept understanding in their teaching and prior learning/knowledge or pre – requisite concepts. This is because certain chemical concepts are required before the teaching of the main topics (Biochemical topics in this case). In other words, this study recommends that secondary school biology and chemistry teachers should teach for concept understanding, topics that are related to the new topics before teaching the topics. / Science Education / Ph. D. (Science Education)

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Agriculture is a one billion dollar industry in the state of California, yet science and agriculture are overlooked in elementary and middle schools. Instead, an emphasis is placed on writing, reading, and math, subjects that are tested at the state level. As a result, fourth and eighth graders in California placed 38th out of 41 in a National Science Assessment Test. In the spring of 2003, science will be included in the statewide test; therefore, elementary and middle school will have to address the subject of science and its impact on the school day. In 2002 the California State Board of Education approved a new California Science Framework, which suggests implementing an integrated approach to teaching science in the classroom.