Exploring the effect of the indigenous technology of oil extraction on Grade 10 Biology learners’ perspectives and sense making of enzymes
- Authors: Nyamakuti, Martha Ndeyatila
- Date: 2021-10-29
- Subjects: Biology Study and teaching (Secondary) , Enzymes , Traditional ecological knowledge Namibia , Culturally relevant pedagogy Namibia , Reasoning , Contiguity Argumentation Theory (CAT) , Namibian National Curriculum for Basic Education(NCBE) , Socio-cultural theory
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192019 , vital:45188
- Description: The current status quo is that African learners’ local indigenous knowledge (IK) and experiences from home (cultural heritage) are not considered in science classrooms. In the context of Namibia, it seems that the Namibian curriculum policies do little or nothing to decolonise and address the issues of equity and social injustice in Namibian schools. For instance, although the Namibian National Curriculum for Basic Education (NCBE) claims that it “embraces traditional knowledge”, it does not specify how this should be done in schools. As a result, little or no integration of IK is enacted in many of our schools in Namibia. Resultantly, learners seem to find science inaccessible and irrelevant to their everyday lives. It is against this background that in this study I sought to explore how the mobilisation of the indigenous technology of oil extraction (okuyenga) from marula nuts and melon seeds influences (or not) Grade 10 Biology learners’ conceptions, dispositions and sense making of the topic of enzymes. The study was located within the interpretive and indigenous research paradigms. Central to the interpretive paradigm is the development of a greater understanding of how people make sense of the contexts in which they live and work. On the other hand, central to indigenous research paradigms are belief systems based on the lived experiences, values, and histories of the participants. The Ubuntu perspective or approach in which respect and humble togetherness is emphasised is critical in indigenous research paradigms especially when researchers are working with and in communities as I did in this study. The study was conducted in an under resourced school in Walvis Bay, Namibia. A qualitative case study approach was used and data were derived from a focus group interview, participatory classroom observations, learners’ reflections, and a stimulated recall interview. Vygotsky’s socio-cultural theory was employed as a theoretical framework. Within the socio-cultural theory, mediation of learning, social interactions, and the zone of proximal development (ZPD) were used as analytical lenses. The conceptual framework comprised of perspectives (conceptions, dispositions) and sense making of enzymes by the learners. Criteria were also adapted from Atallah, Bryant, and Dada to analyse learners’ perspectives. A thematic approach to analysis was employed to come up with categories and sub-themes and thereafter, common sub-themes were combined to form themes. The findings of the study revealed that the presentations on the indigenous technology of oil extraction by the expert community members influenced learners’ conceptions, dispositions, and sense making of enzymes and other associated science concepts. This was noticed when learners extracted emerging science concepts from the indigenous technology of oil extraction. The implication of this study is that there is a need for science teachers to consider learners’ cultural heritage and integrate local IK in their Biology classrooms in order to make science accessible and relevant to learners. Moreover, the integration of local IK is critical for learners to embrace and respect their cultural heritage. This study thus recommends that teachers should make efforts to collaborate with expert community members who are the custodians of local IK and tap into their cultural heritage and wisdom to enrich teaching in their science classrooms. , Thesis (MEd) -- Faculty of Education, Education, 2021
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Mobilising stories about cultural beliefs and practices on traditional foods to contextualise the topic on nutrition in a Grade 6 township class
- Authors: Nuntsu, Sipho Nimrod
- Date: 2021-10
- Subjects: Culturally relevant pedagogy South Africa , Science Study and teaching (Elementary) South Africa , Nutrition Study and teaching (Elementary) South Africa , Traditional ecological knowledge South Africa , Storytelling , Reasoning , Contiguity Argumentation Theory (CAT) , South African Curriculum Assessment and Policy Statement (CAPS) , Socio-cultural theory
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/190940 , vital:45043
- Description: The South African Curriculum Assessment and Policy Statement (CAPS) document stipulates that science teachers should integrate indigenous knowledge (IK) into their science teaching. The rationale for this is to contextualise the content and make science accessible and relevant to learners. Despite these ideals, however, CAPS seems to be silent on how science teachers should go about doing this. Instead, it assumes that all teachers know how to integrate IK in their science teaching. As a result, many teachers are still not sure of how to integrate IK into their science classrooms. Such rhetoric and tension between curriculum formulation and implementation triggered my interest to do a study on how to mobilise stories about cultural beliefs and practices of traditional foods to mediate learning of nutrition in a Grade 6 Natural Sciences township class. The study was underpinned by an interprevist paradigm complemented with an Ubuntu paradigm to enhance explanations. Within these paradigms, a qualitative case study research design was adopted. It was conducted at Mdoko Primary school (pseudonym) in a semi-urban community in the Amathole West district of the Eastern Cape. The participants were 34 Grade 6 learners (15 boys and 19 girls), a Grade 6 Natural Sciences teacher who was my critical friend, and two expert community members. To generate data, I used a focus group discussion, group activities, classroom observations, and learners’ reflective journals. Vygotsky’s socio-cultural theory and Ogunniyi’s Contiguity Argumentation Theory (CAT) were used as theoretical and analytical frameworks, respectively. A thematic approach to data analysis was employed. That is, data were analysed inductively to identify sub-themes and subsequently similar sub-themes were grouped together to form themes. The two expert community members’ presentations equipped my learners with stories on cultural beliefs and practices that were used in the olden days (past) and how such stories are used in our days (present). For instance, the findings of this study revealed that women during menstruation must not drink amasi as it is believed that it would prolong the menstruation time. The findings also revealed that eating of amaqanda and inside meat by youths should be minimised as it is believed that it can stimulate their sex hormones. It also revealed that there is no relevance to science that men eating imifino would be weak among other men who do not eat them. The implications for this study is that science teachers should make some efforts to integrate IK in their teaching to make science accessible and relevant to their learners. To achieve this, the study thus recommends that science teachers should find ways of tapping into the cultural heritage and wisdom that is possessed by the expert community members to enable learners to cross the bridge from home to school. , Thesis (MEd) -- Faculty of Education, Education, 2021
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Examining mathematical reasoning through enacted visualisation
- Authors: Dongwi, Beata Lididimikeni
- Date: 2019
- Subjects: Visualization , Mathematics -- Study and teaching -- Namibia , Mathematics -- Study and teaching -- Audio-visual aids , Geometry -- Study and teaching , Reasoning , Mathematical ability
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/68192 , vital:29217
- Description: This study sets out to analyse the co-emergence of visualisation and reasoning processes when selected learners engaged in solving word problems. The study argues that visualisation processes and mathematical reasoning processes are closely interlinked in the process of engaging in any mathematical activity. This qualitative research project adopted a case study methodology embedded within a broader interpretative orientation. The research participants were a cohort of 17 mixedgender and mixed-ability Grade 11 learners from a private school in southern Namibia. Data was collected in three phases and comprised of one-on-one task-based interviews in the first phase, focus group task-based interviews in the second, and semi-structured reflective interviews in the third. The analytical framework was informed by elements of enactivism and consisted of a hybrid of observable visualisation and mathematical reasoning indicators. The study was framed by an enactivist perspective that served as a linking mediator to bring visualisation and reasoning processes together, and as a lens through which the coemergence of these processes was observed and analysed. The key enactivist concepts of structural coupling and co-emergence were the two mediating ideas that enabled me to discuss the links between visualisation and reasoning that emerged whilst my participants solved the set word problems. The study argues that the visualisation processes enacted by the participants when solving these problems are inseparable from the reasoning processes that the participants brought to bear; that is, they co-emerged.
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Observing and evaluating creative mathematical reasoning through selected VITALmaths video clips and collaborative argumentation
- Authors: Kellen, Matthew Earl
- Date: 2017
- Subjects: Mathematics Study and teaching (Secondary) South Africa Grahamstown , Mathematics Study and teaching (Secondary) Audio-visual aids , Reasoning , Mathematical ability
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/6107 , vital:21032
- Description: Creative mathematical reasoning is a definition that the NCS policies allude to when they indicate the necessity for students to, “identify and solve problems and make decisions using critical and creative thinking.”(NCS, 2011: 9). Silver (1997) and Lithner (2008) focus on creativity of reasoning in terms of the flexibility, fluency and novelty in which one approaches a mathematical problem. Learners who can creatively select appropriate strategies that are mathematically founded, and justify their answers use creative mathematical reasoning. This research uses Visual Technology for the Autonomous Learning of Mathematics (VITALmaths) video clips that pose mathematics problems to stimulate articulated reasoning among small multi-age, multi-ability Grade 9 peer groups. Using VITALmaths clips that pose visual and open-ended task, set the stage for collaborative argumentation between peers. This study observes creative mathematical reasoning in two ways: Firstly by observing the interaction between peers in the process of arriving at an answer, and secondly by examining the end product of the peer group’s justification of their solution. (Ball & Bass, 2003) Six grade 8 and 9 learners from no-fee public schools in the township of Grahamstown, South Africa were selected for this case study. Participants were a mixed ability, mixed gendered, sample group from an after-school programme which focused on creating a space for autonomous learning. The six participants were split into two groups and audio and video recorded as they solved selected VITALmaths tasks and presented their evidence and solutions to the tasks. Audio and video recordings and written work were used to translate, transcribe, and code participant interactions according to a framework adapted from Krummheuer (2007) and Lithner (2008) and Silver (1997) and Toulmin (1954). This constituted the analysis of the process of creative mathematical reasoning. Group presentations of evidence and solutions to the VITALmaths tasks, were used in conjunction with an evaluation framework adapted from Lithner (2008) and Campos (2010). This was the product analysis of creative mathematical reasoning. This research found that there was significant evidence of creative mathematical reasoning in the process and product evaluation of group interactions and solutions. Process analysis showed that participants were very active, engaged, and creative in their participation, but struggled to integrate and implement ideas cohesively. Product analysis similarly showed that depth and concentration of strategies implemented are key to correct and exhaustive mathematically grounded solutions.
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Knowing what we can't believe
- Authors: Viedge, Nikolai
- Date: 2004
- Subjects: Reason , Reasoning , Truth , Explanation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2724 , http://hdl.handle.net/10962/d1002854 , Reason , Reasoning , Truth , Explanation
- Description: The aim of this thesis is to examine what affect, if any, finding an argument both unanswerable yet unbelievable has on three purported first-person doxastic constraints. The three proposed constraints are the principle of truth, the principle of adequate reason and the principle of epistemic explanation. In Chapter 1, I lay out the claim of each of these constraints; differentiate them from one another, examine under what conditions they can be said to apply and provide what I take to be the strongest arguments for each of them. In Chapter 2, I explicate what I mean by finding an argument unanswerable yet unbelievable. In Chapters 3, 4 and 5, I detail how it is that finding an argument unanswerable yet unbelievable could constitute a threat to each of these constraints. I conclude that while the principle of adequate reason is undermined in the face of this threat, both the principle of truth and the principle of epistemic explanation fail to be undermined by this challenge.
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Reason and eros
- Authors: Chalmers, W D
- Date: 1967 , 2014-06-09
- Subjects: Philosophy , Love , Reasoning
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2748 , http://hdl.handle.net/10962/d1013331
- Description: This study is not intended as a work of research into any existing body of philosopny. It is, rather, an independent inquiry into the origins and the objective of philosophical activity. In this it assumes the somewhat enigmatic role of a philosophy of philosophy.
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