2026-09-20T12:25:51Zhttps://repository.unam.edu.na/server/oai/request

oai:repository.unam.edu.na:11070/38732024-06-08T22:01:38Zcom_11070_3503com_11070_3316com_11070_3306col_11070_148

Muronga, Shifafure Andreas 2024-06-05T06:12:30Z 2024-06-05T06:12:30Z 2024 http://hdl.handle.net/11070/3873 A Dissertation submitted in fulfilment of the requirements for the degree of doctor of philosophy in Science education The purpose of this study was to investigate teachers’ use of Teaching and Learning Support Materials (TLSMs) for effective teaching of Grade 11 Chemistry and Physics in the Kavango East Region, Namibia. Four research questions were generated to guide the collection of data. The study adopted the sequential mixed methods research design which employed both quantitative and qualitative approaches. The quantitative approach employed Likert scale closed-ended survey questionnaires while the qualitative approach employed follow-up interviews and live classroom observations to address the research questions. The quantitative data was analyzed using descriptive statistics and then presented using tables and graphs, while the qualitative data were analyzed using the thematic analysis method. The study sample included all the twenty-one Chemistry and Physics teachers teaching in Senior Secondary Schools, and one Science Education Officer (SEO) in the Kavango East Region. Thus, the total population sampling method was used to select the sample. The study found that there are different ways in which Chemistry and Physics teachers in the Kavango East Region used different TLSMs for effective teaching of the subjects in Grade 11. The study found that the teachers mainly used TLSMs to help their learners acquire quality knowledge construction and enduring memory of Chemistry and Physics concepts taught (71% of the participants agreed and 19% strongly agreed), and to instill scientific skills of handling apparatus in the learners (71% of the participants’ agreed and 14% strongly agreed). Furthermore, the participants (76% agreed and 19% strongly agreed) indicated that they use TLSMs to arouse learner’s attention and enhance their concentration during the lesson, and to facilitate guided interactions between the learners (57% agreed and 14% strongly agreed). However, the study revealed that several factors constrained the teachers from using iii TLSMs for effective teaching of Grade 11 Chemistry and Physics in the area. These include teachers’ lack of pedagogical knowledge in using TLSMs to effectively teach Grade 11 Chemistry and Physics, scarcity of TLSMs (textbooks 95%, photocopy papers 87%, past exam papers 90% and lack of internet excess 83%), overcrowded classrooms, poor English as a Second language, lack of well-equipped school laboratories, and lack of training workshops. As indicated by the participants, the possible intervention measures that can support the Chemistry and Physics teachers to use TLSMs for effective teaching of these subjects in the study area include provision of teachers’ in service training through Continuous Professional Development, provision of well equipped science laboratories, and provision of relevant TLSMs. Findings from the live classroom observations also revealed that the teachers need training on the best practices of using TLSMs and methods to achieve the desired teaching objectives. Therefore, the study recommended that the SEO should provide regular capacity building workshops for the Chemistry and Physics teachers based on innovative usage of TLSMs to enable them to effectively teach the subjects. Furthermore, the Ministry of Education, Arts and Culture should provide adequate relevant TLSMs as well as equip Chemistry and Physics laboratories in the schools in order to avail teachers the needed TLSMs for effective teaching of Grade 11 Chemistry and Physics in the study area en University of Namibia Teaching and learning Support materials Namibia Grade 11 Chemistry Physics Kavango East Teachers' use of teaching and learning support materials for effective teaching of grade 11 chemistry and physics in Kavango East region, Namibia Thesisopen.access