Exploring Intersemiotic Complementarity in three Namibian Physical Science teachers’ classroom practice
- Authors: Nakakuwa, Tomas
- Date: 2019
- Subjects: Semiotics , Communication in science , Communication in education , Physical sciences -- Study and teaching -- Namibia , Science -- Study and teaching -- Namibia , Language and education -- Namibia , Science teachers -- Training of -- Namibia , Visual learning , Verbal learning
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/96812 , vital:31324
- Description: The Namibian Science curriculum promotes learners’ development of self-confidence, self-knowledge and understanding of the world in which they live. The world we live in is increasingly multimodal, necessitating a multiliteracy in learners in order for them to engage meaningfully with knowledge and skills. Furthermore, scientists themselves engage in a range of inscription practices. While verbal language is the primary medium through which scientific knowledge and concepts are constructed, communicated, and learned, visuals can help learners to gain knowledge that they may not receive from verbal explanation alone. The verbal and visual semiotic modes can also function in a complementarity way, and this is significant in contexts where science lessons are for the most part in a second language - as is the case in Namibia where the language of learning and teaching (LoLT) of English is commonly not the learners’ mother tongue. However, no studies were found exploring the nature of verbal-visual intersemiotic complementarity in the practice of Namibian science teachers, or whether it was related to the number of years of science teaching experience. This study thus aimed to explore the dynamics of verbal-visual intersemiotic complementarity in the classroom practice of three Junior Secondary Physical Science teachers, with varying amounts of science teaching experience, in the Oshana region of Namibia. This qualitative case study, on the dynamics of verbal-visual intersemiotic complementarity in science teacher classroom practice follows in the path of earlier studies which employed Systemic Functional Linguistics (SFL) in the analysis of multimodal discourse. This thesis is also informed by Social Constructivism in which the various semiotic modes are recognised as components of the toolkit for mediating learning. The study adopted the interpretive paradigm. Data collection involved lesson observations and semi-structured interviews. Data analysis involved identification and coding of themes and categories inductively. The results reveal that the participant teachers employed the full range of intersemiotic sense relations which literature outlines. It was found that the ideational meanings in the verbal and visual modes of the science teachers’ practice are lexico-semantically related through these intersemiotic sense relations. While some teachers utilised some intersemiotic sense relations more often than others, there were no correspondences evident between the use of verbal-visual intersemiotic complementarity and the number of years of science teaching experience. The results also indicated that different intersemiotic sense relations served different purposes in the science classroom. The verbal-visual intersemiotic complementarity in the participant teachers’ practice tended to focus on: physical material, processes, symbolism or resemblance. This study has significant implications, providing an empirical basis for informing pre-service Physical Science teachers’ training and guiding the in-service training of Physical Science teachers in Namibia. Since its effective use may not be left up to teaching experience, Namibian Physical Science teacher training programmes need to include the use of verbal-visual intersemiotic complementarity in order to equip and empower Physical Science teachers.
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- Date Issued: 2019
The effect of a scientific literacy strategy on grade 6 and 7 learner's general literacy skills
- Authors: Mayaba, Nokhanyo Nomakhwezi
- Date: 2009
- Subjects: Science -- Language , Science -- Study and teaching (Secondary) -- South Africa , Communication in science
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9519 , http://hdl.handle.net/10948/1012 , Science -- Language , Science -- Study and teaching (Secondary) -- South Africa , Communication in science
- Description: In this study I investigated the effect of a science literacy strategy on the development of grade six and seven second-language learners’ general literacy skills in both their home language (isiXhosa) and language of instruction (English). The scientific literacy strategy used focuses on reading to learn science, writing to learn science, classroom discussion and argumentation. A mixed method design was used. Quantitative data were collected from baseline and post-testing of language skills of learners. Qualitative measures were generated through interviews of learners and teachers and classroom observations. The sample comprised of seven grades six and seven (multigrade classrooms) classes in seven primary schools situated in the rural areas near Hogsback in the Eastern Cape (five experimental schools and two control schools). Mean differences between the experimental and control groups for the reading, listening, writing and speaking aspects of the literacy tests were computed and the data generated were treated statistically using Analysis of Variance. The qualitative data were used to gain deeper insights into the quantitative results. The data suggest that the science literacy strategy statistically significantly improved the learners reading skills in English, their listening skills in both English and isiXhosa, and their writing skills in isiXhosa over a six-month period. Possible explanations for these results are that the reading material was in English only, extensive use of code-switching from English to Xhosa was made by the teachers while teaching, and that learner classroom discussion and writing in isiXhosa was encouraged.
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- Date Issued: 2009