In her newsletter “Curriculum News, Improving the Quality of Learning and Teaching: Planning for 2010 and Beyond”, Mrs Angie Motshekga, MP, Minister of Basic Education, positions the textbook very definitely as central to the curriculum and states that it is one of the most effective tools through which to deliver the curriculum and support assessment. Acknowledging the importance of the accessibility of textbooks for the South African classroom audience, this study has sought to investigate the readability of the chemistry section of grade 10 science textbooks. Readability research is concerned with the relationship between the textbook, the reader and the context in which the book is read; research supports the use of both classical quantitative measures and a qualitative cognitive-structural form of analysis to investigate this relationship. The research design is a mixed method one where quantitative and qualitative data were collected simultaneously: the methodical application of selected readability formulae gave rise to quantitative data while the line-by-line textual analysis, tracing cognitive-structural aspects, and focus-group discussions with teachers gave rise to the qualitative data. The results of the merged data analysis were then interpreted together to provide a better understanding of the readability of the texts for a South African audience. The results of the investigation reveal that readability is greatly impaired for a number of reasons, the primary one being a lack of articulation between the textbook writers/editors and the audience for which they are writing and preparing the texts. This is particularly reflected in the inadequate preparation of the material for the English Second Language reader, as certain textbooks are completely out of their reach. Furthermore, this lack of articulation can be traced to the lack of time available for piloting the textbooks: an invaluable intervention in the process of textbook production.

Please read the abstract in the section 00front of this document / Thesis (PhD (Research Methodology))--University of Pretoria, 2006. / Science, Mathematics and Technology Education / unrestricted

Foundation Phase (FP) teachers’ reluctance to teach science might stem from their weak science backgrounds that has resulted in their limited science content knowledge and their congruent science misconceptions and low self-efficacy with respect to science (Boyer, 2010; Luera, Moyer, & Everett, 2005). This study was guided by the following research question: What lessons, if any, can be learnt from a representative sample of FP teachers from six rural schools in the Libode Mega District with respect to the implementation of the Natural Sciences aspect of a new curriculum? The sample comprised 18 black, female, isiXhosa speaking teachers that represented six schools in the Libode Mega District (Libode, Ntlaza and Lusikisiki). A mixed-methods approach was used to collect qualitative and descriptive quantitative data using two structured questionnaires and semi-structured interviews in the form of focus groups.

Part of the transformation of education in South Africa emphasises the need to address historical barriers that have been impeding access into institutions of learning, and the need for empowering stakeholders democratically. Improving institutional responsiveness and focusing on Science, Technology, and Engineering and increasing the number of university graduates are amongst the more prominent strategies for changing the educational, socioeconomic, and political landscape within a global context. This research, as the first cycle of an action research project, explores collaborative group work with a group of science students at a Vista University campus (that is now part of the Nelson Mandela Metropolitan University) as a contribution to institutional, professional, and personal responsiveness. The treatise traces my development as a novice researcher within an evolving action research context that became a terrain for facilitating a collaborative approach to learning. I describe my personal experience and the experiences of my co-researchers as collaborative partners, the systemic influences considered during the study, and the process of action research that encouraged movement from feelings of apprehension and inadequacy to feelings of anticipation and excitement regarding collaborative interactive learning and development opportunities. For the co-researchers and me an action research process in an interpretivist paradigm was not just suited to an exploration of collaboration, but also evolved into a vehicle for interactive teaching and learning, in a collaborative and student-centred way. Giving voice and being listened to, having perspectives validated, engaging in learning that could accompany academic and personal growth, and an acute sense of being empowered are ingredients that participants, and institutions of learning, can continue building on and building with along evolving spirals of life-long learning and meaning making.

The use of Computer Aided Software Engineering (CASE) tools for teaching object-oriented systems analysis and design (OOSAD) has many potential benefits, but there are also several problems associated with the usage of these tools. A large portion of these problems relate to the usability and learnability of these tools. Learnability is one of the most important attributes of usability and refers to the capability of the system to enable the user to learn its application. The main research question that this study aims to address is “How can the learnability of OO CASE tools for computing education in South Africa be evaluated?”. In order to answer this question several frameworks for evaluating CASE tool usability and learnability were investigated. One of these frameworks, as proposed by Senapathi, was selected as being the most appropriate for evaluating CASE tool learnability for computing education. This framework maintains that the learnability of a CASE tool is dependent on context of use factors such as the tool used, as well as user characteristics such as gender. The primary aim of this research was thus to validate Senapathi's framework for CASE tool learnability in a South African context. A secondary aim of the research was to extend the implementation of the framework in order to enable the comparison of two CASE tools and to support the inclusion of other user characteristics. An experiment was performed at the Nelson Mandela Metropolitan University (NMMU) in 2006. The participants recruited for this experiment were second year computing students at NMMU. During this experiment, the learnability of two OO CASE tools, namely IBM's Rational Software Modeller and Microsoft's Visio, was evaluated and compared. The quantitative and qualitative results supported Senapathi's results and showed that her framework could be used to evaluate CASE tool learnability and could be adapted to evaluate two CASE tools. The results also showed that the majority of the participants rated the learnability of Microsoft Visio higher for both tasks and that the main reasons participants preferred Visio was due to its simplicity, familiarity and recoverability.

The importance of a scientifically literate society is currently acknowledged both internationally and South Africa. The notion of scientific literacy in South Africa has emerged largely due to the government’s recognition of the role that science and technology plays in economic growth, employment creation, social redress and social development. However, in light of South Africa’s learner performance on international and national assessments such as TIMMS (2003) and PIRLS (2006), as well as the problems of teaching and learning in a second language, there appears to be a primary and pressing need to develop learners’ fundamental sense of scientific literacy (Norris & Phillips, 2003). Expanding learners’ ability to read, write and communicate in science may provide the necessary framework for engaging learners in the critical principles and foundations of the scientific endeavour (Hand, Prain, & Yore, 2001). As such, this study focuses on equipping and training grade six and seven science teachers to develop scientifically literate learners via professional development workshops with a strategy that supports reading, writing, talking and conducting (‘doing’) science through scientific investigations. The typology of triangulation and the mixed method research approach was supported by a fully mixed, concurrent, and equal status design (Leech & Onwuegbuzi, 2007). Quantitative data were collected from the baseline and post-intervention testing of learners’ problem solving skills, as well as their literacy skills in English and isiXhosa. Qualitative measures were generated through classroom observations, teacher interviews and learners’ science notebooks. The study was conducted in two different milieus in the Eastern Cape, South Africa. The first setting, in the rural area of Tyumie Valley near the Hogsback Mountains, was comprised of a sample of grade six and seven (multi-grade classrooms) teachers (n=7) and learners (n=168) from five experimental schools and two comparison schools. The second setting, in the urban townships area east of Port Elizabeth, was comprised of a sample of grade six teachers (n=8) and learners (n=675) from six experimental schools and two comparison schools. Mean differences between the experimental and the comparison groups were computed for the Raven’s Standard Progressive Matrices (RSPM) and the literacy tests, and the data generated were treated with an Analysis of Covariance (ANCOVA). The data suggest that the scientific literacy strategy improved the experimental learners’ problem solving skills. Both experimental groups demonstrated greater gains than that of the comparison schools. However, statistically significant improvements were only detected in Port Elizabeth. Improvements in learners’ literacy skills in isiXhosa and English varied according to each milieu. While the teachers initially identified challenges to learners’ reading and writing abilities, the analysis of learners’ science notebooks suggested that they used writings to support their investigations. Some teachers cited difficulties with certain aspects of the model, such as problems with developing an investigable question and argumentation, yet overall, teachers found the strategy useful for developing learners’ language skills, as well for strengthening their pedagogical practices in science. Teachers’ gradual improvements in the use of the model suggest that they were able to use the scientific literacy strategy to support the cognitive and linguistic development of second-language learners.

This case study examines some of the cultural and educational implications of the intersection of a Western world view and a Yupiaq world view in a remote Yupiaq Eskimo village on the Kuskokwim River in southwestern Alaska. The study examines how the contemporary Yupiaq people have adapted their belief system, educational practices and subsistence lifestyle to accommodate a mix of Western and indigenous cultural traditions and technologies. It involves the documentation of Yupiaq practices in a traditional fish camp and science education in a school setting. The most important vehicle for data gathering was the role of participant-observer, because it was congruent with the way Yupiaq people learn. In addition to patient observation, emphasis was placed on document analysis, informal conversations, and interviews as the primary sources of data from the fieldwork. The study addresses the aspirations of Yupiaq people for self-determination and self-reliance by providing a pedagogical framework which attempts to meld Western and Yupiaq knowledge generation and use, based on the data gathered in the field. Special attention is given to the generation and application of scientific knowledge in a manner suited to the maintenance of Yupiaq cultural traditions and world view in a contemporary world. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate

Learning difficulties resulting from students holding conceptions of scientific concepts which are at variance with those presented in curricular materials have been identified in the literature in a number of areas of science. In this study a number of student learning difficulties related to the concepts of growth and the cell were identified. More specifically, this study was designed to investigate whether alternative conceptions held by students prior to instruction were, in part, responsible for these learning difficulties. The study also investigated whether omissions in instruction contributed to these learning difficulties. Finally, the study examined changes in student conceptions after formal instruction. Through concept analyses of growth and the cell, two semi-structured interview protocols were developed. The Growth Protocol was used to interview students in Grades 3, 5, and 7 and the Cell Protocol was used to interview students in Grade 10. The students in Grades 3 and 10 were interviewed both before and after instruction. The conceptions of the students identified in the transcripts were classified into a number of categories specific to the constituent concepts of growth and the cell. Students at all grade levels were found to hold a wide variety of alternative conceptions regarding the concepts in question. The majority of these alternative conceptions were identified in more than one student and did not reflect current scientific or curricular understandings of growth or the cell. Rather, it seemed that these alternative conceptions reflected student attempts to make sense of concrete experiences with phenomena in their surroundings. After instruction at both the elementary and secondary level, the majority of students did not incorporate most of the scientific concepts as they were presented during instruction. The older students did not hold a conception of cell differentiation nor did the majority of students link the microscopic phenomena of cell division with the macroscopic phenomena of growth in organisms other than humans. The variability of alternative conceptions of mitosis and meiosis after instruction strongly suggested that the students experienced learning difficulties with respect to these concepts. The results of this study imply that in order to effectively move the learner from alternative conceptions to scientific conceptions both curricular and instructional strategies must shift their emphasis from one of presenting only disciplinary knowledge to one of considering also the prior knowledge that the learner brings to the instructional setting. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate

In science education the nature and value of science laboratory activities have become the subject of critical debate. Some science educators argue that a better understanding of what students do while purposefully engaged with materials would provide some answers. The intent of this study is to explore elementary students' actions and the knowledge they use while designing and conducting experiments. Four dyads each from grades 4 and 7 participated in three events. First, each pair was presented with a question (Which magnet is strongest?), two sets of magnets (one set at a time) and materials. The researcher observed and videotaped dyads' actions with materials until they made a conclusion for both magnet sets. Second, the researcher presented dyads with a selective set of materials to further explore their conceptions of magnetism. Finally, the pairs of students were interviewed while they watched the video of themselves experimenting during the first two events. The data were analyzed using an action theory perspective which emphasizes the cognitive nature of action. Students' models of magnetism were constructed from the data. Students used more than one model to explain different effects they observed. The designs of student experiments were grounded in their operational knowledge of the materials. Dyads generated data from a series of experiments whereby they manipulated different materials in a variety of ways. Dyads who obtained variable data did not repeat experiments to confirm or disconfirm results; rather they used specific strategies to make conclusions. The designs and procedures of experiments of students from both grades were similar, likely due to their common knowledge of the materials and their limited experience with open-ended tasks. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate

The purpose of this study was to compare the achievement and test anxiety level of students taking a conventional paper-and-pencil science test comprising multiple-choice questions, and a computer-based version of the same test. The study assessed the equivalence of the computer-based and paper-and-pencil tests in terms of achievement scores and item characteristics, explored the relationship between computer anxiety and previous computer experience, and investigated the affective impact of computerized testing on the students. A 2 X 2 (mode of test administration by gender) factorial design was used. A sample of 54 male and 51 female Grade 10 students participated in the study. Subjects were blocked by gender and their scores on a previous school-based science exam. They were then randomly assigned to take either the computer-based test or the paper-and-pencil test, both versions of which were identical in length, item content and sequence. Three days before the test, all students were given the "Attitude questionnaire" which included pre-measures of test and computer anxiety. Immediately after taking the test, students in the computer-based group completed the "Survey of attitudes towards testing by computers" questionnaire which assessed their previous computer experience, their test anxiety and computer anxiety level while taking the test, and their reactions towards computer-based testing. Students in the paper-and-pencil test group answered the "Survey of attitudes towards testing" questionnaire which measured their test anxiety level while they were taking the paper-and-pencil test. The results indicate that the mean achievement score on the science test was significantly higher for the group taking the computer-based test. No significant difference in mean scores between sexes was observed; there was also no interaction effect between mode of test administration and gender. The test anxiety level was not significantly different between the groups taking the two versions of the test. A significant relationship existed between students' prior computer experience and their computer anxiety before taking the test. However, there was no significant relationship between previous computer experience and the computer anxiety evoked as a result of taking the test on the computer. Hence, the change in computer anxiety due to taking the test was not explained by computer experience. Of the students who took the computer-based test, 71.2 % said that if given a choice, they would prefer to take the test on a computer. Students indicated that they found the test easier, more convenient to answer because they did not have to write, erase mistakes or fill in bubbles on a scannable sheet, and faster to take when compared to a paper-and-pencil test. Negative responses to the computer-based test included the difficulty involved in reviewing and changing answers, having to type and use a keyboard, fear of the computer making mistakes, and a feeling of uneasiness because the medium of test presentation was unconventional. Students taking the computer-based test were more willing to guess on an item, and tended to avoid the option "I don't know." It is concluded that the computer-based and the paper-and-pencil tests were not equivalent in terms of achievement scores. Modifications in the way test items are presented on a computer-based test may change the strategies with which students approach the items. Extraneous variables incidental to the computer administration such as the inclination to guess on a question, the ease of getting cues from other questions, differences in test-taking flexibility, familiarity with computers, and attitudes towards computers may change the test-taking behaviour to the extent that a student's performance on a computer-based test and paper-and-pencil test may not be the same. Also, if the tasks involved in taking a test on a computer are kept simple enough, prior computer experience has little impact on the anxiety evoked in a student taking the test, and even test-takers with minimal computer experience will not be disadvantaged by having to use an unfamiliar machine. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate