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Many students have difficulty of learning abstract and complex topic in chemistry. This study investigated how students develop their understanding of abstract and complex topics of chemistry with the aid of visualizing tools: animation, simulation and video. A particular focus of this investigation was to assess to what extent the uses of pedagogy based technology (PBT) is effective in learning chemistry. The combined effect of animation, simulation and video clips enable learning by doing and provide opportunity to explore the abstract and complex lessons of chemistry. The research was conducted with sequential embedded mixed research (quasi experimental and Explanatory) case study design. The experiment was carried out with second year chemistry students include 90(14 female and 76 male) students, 12 male chemistry lecturers and the college heads. The students were constituted 45 Control group and 45 Treatment groups. The groups were non-equivalent (convenient samples), suggesting that randomization was not possible as the students were in intact classes. To apply animation, simulation and video in supporting student-centered learning activities of electrochemistry for second year students flash and micro media player were used. The treatment group was trained for two weeks how to operate and use animation, simulation and video software. Pre and Post tests were administrated to the target groups. The effectiveness of PBT was also evaluated by administrating separate Schedule containing open and closed ended questions. The comments and ratings obtained from the learners‟ and lecturer insights provided the basis for the learning impact of the study. The result obtained from the vi experiment and responses of the schedule shows that PBT improves the performance of students. Therefore, to make the abstract and complex concepts of chemistry easy and clear Electrochemistry learning should be supported by animation simulation and video. An extended study may help to understand the multi sensory benefit of Pedagogy-Based-Technology. Thus, a possible extension to this study should cover a variety of universities and should aim at evaluating its effectiveness in various context and subjects‟. / Science and Technology Education / D. Phil. (Mathematics, Science and Technology Education (Chemistry Education))

published_or_final_version / Education / Master / Master of Education

published_or_final_version / Linguistics / Master / Master of Arts in Applied Linguistics

published_or_final_version / Education / Master / Master of Education

published_or_final_version / Education / Master / Master of Education

published_or_final_version / Linguistics / Master / Master of Arts in Applied Linguistics

Many students have difficulty of learning abstract and complex topic in chemistry. This study investigated how students develop their understanding of abstract and complex topics of chemistry with the aid of visualizing tools: animation, simulation and video. A particular focus of this investigation was to assess to what extent the uses of pedagogy based technology (PBT) is effective in learning chemistry. The combined effect of animation, simulation and video clips enable learning by doing and provide opportunity to explore the abstract and complex lessons of chemistry. The research was conducted with sequential embedded mixed research (quasi experimental and Explanatory) case study design. The experiment was carried out with second year chemistry students include 90(14 female and 76 male) students, 12 male chemistry lecturers and the college heads. The students were constituted 45 Control group and 45 Treatment groups. The groups were non-equivalent (convenient samples), suggesting that randomization was not possible as the students were in intact classes. To apply animation, simulation and video in supporting student-centered learning activities of electrochemistry for second year students flash and micro media player were used. The treatment group was trained for two weeks how to operate and use animation, simulation and video software. Pre and Post tests were administrated to the target groups. The effectiveness of PBT was also evaluated by administrating separate Schedule containing open and closed ended questions. The comments and ratings obtained from the learners‟ and lecturer insights provided the basis for the learning impact of the study. The result obtained from the vi experiment and responses of the schedule shows that PBT improves the performance of students. Therefore, to make the abstract and complex concepts of chemistry easy and clear Electrochemistry learning should be supported by animation simulation and video. An extended study may help to understand the multi sensory benefit of Pedagogy-Based-Technology. Thus, a possible extension to this study should cover a variety of universities and should aim at evaluating its effectiveness in various context and subjects‟. / Science and Technology Education / D. Phil. (Mathematics, Science and Technology Education (Chemistry Education))

The aim of the study was to identify the factors that have an influence on the completion rates of undergraduate students in the fields of science, technology, engineering and mathematics (STEM). Using Tinto's retention rate theory as the theoretical foundation, data were collected from freshman who were enrolled in the years 2005 to 2008. Results showed gender and first-generation status were significant predictors of STEM completion and time taken to complete the degree. Institutional bias played a role in race/ethnicity not being a factor affecting completion rates, as this study was conducted at a Predominantly White Institution. SAT scores and first and second-year college GPA showed to have the most prominent influence on both STEM completion rate and time taken to complete the degree. Females with higher first-year college GPA and higher high school rank finished faster. Similar results were found with first-generation students as well. Students belonging to ethnic minority groups with higher SAT scores and college GPA had greater success in STEM fields as well. The study results can be used to increase completion rates of underrepresented students in the STEM fields, given what we know about the interactions between underrepresented student groups and the most important predictors.

Public programming initiatives are considered an integral part of archival operations across the world because they support a greater use of archival records. In South Africa, public archival institutions are mandated in terms of section 5(1)(c) of the National Archives and Records Service of South Africa Act (Act No. 43 of 1996) (NARSSA Act), to reach out to the less privileged sectors of society, by making known information concerning records by means such as publications, exhibitions and lending of records. This also includes taking archives to young people, especially school learners. As a result, public archives repositories in South Africa have designed programmes to take archives to school learners for the purpose of creating future users and expanding the use of archival sources. Despite efforts to take archives to the people in South Africa, it would seem that public programming methods that repositories use at schools are not effective in creating awareness and promoting public archives to attract school learners. This qualitative study utilised semi-structured interviews and observation as data collection tools to investigate schools as conduits for taking public archives to learners in the Gauteng province of South Africa. The study targeted learners and teachers in schools which participated in the archival public programming in Gauteng province, as well as staff members of the National Archives and Records Service of South Africa (NARSSA) and Gauteng Provincial Archives responsible for public programming. The key findings suggest that the public archives repositories in Gauteng do not use technology, particularly social media, to market their services to school learners. The main method of taking archives to learners is through invitations and participation in the annual archives week, which do not yield any positive results, as learners do not visit the archives afterwards. It is recommended that NARSSA and Gauteng Provincial Archives consider using school learners who participated in archives week and are interested in archives to be ambassadors to further recommend the use of archives to potential users and their peers. Furthermore, collaboration between archivists and teachers from neighbouring schools should be considered by including school projects that involve the use of “archives’’. The study concludes that failure to adopt social media platforms to market archives would result in school learners not using archives. A further study covering all provinces in South Africa is recommended. / Information Science / M. inf. (Archival Science)