The purpose of the study was to investigate second language learner‟s proficiency in mathematical language. The study was conducted using the Grade 12 learners in a senior secondary school in the district of Mthatha, Eastern Cape. The researcher used a case study approach and a questionnaire was used to investigate whether or not learners understood the language rather than to assess their mathematical ability. English was the language in question and used as the medium of instruction (MOI). In this study, aspects of the language used for mathematics are highlighted, the importance of mathematical vocabulary is discussed and reference is made to some recent research concerned with the understanding of mathematical language. The importance of language as a factor in the learning of mathematics is established through a consideration of bilingualism and the writer‟s own research into the understanding of mathematical language. Perhaps the most obvious educational difficulty which students encounter is that of language. Teachers and curriculum planners need to assess whether this is desirable, and to attempt to find ways in which learners in bilingual education programmes can learn mathematics in a meaningful way. Theories on the interaction between language and mathematical thinking, as well as the studies conducted with bilingual students can inform one‟s thinking about this issue. These ideas have important implications for teaching, texts and curriculum development. The study examined some of the above aspects in the context of South African Education.

A Five-pillar conceptual framework -good social environment, focused instruction, well-trained and regularly supervised teachers, family background and language of learning and teaching- is used in this dissertation as a theoretical construct through which to make sense of persistent learner performance disparities between former white and former black schools in the South African public education system. This is a largely qualitative research project which employs a case study approach within a study area comprised of four purposive sample schools. The study is exploratory in nature in that it seeks to investigate why former white schools continue to perform better than former black schools despite massive educational changes made since 1994. I argue in this dissertation that teaching and learning processes between former white and former black schools are still fraught with huge inequalities, hence learner performance disparities. In other words, despite the investment, inputs and strategies since 1994, the education system in historically black schools is not working largely because of issues of classroom practice. A multi-method approach for data collection purposes was used in this study: testing, interviews, observations, intensive literature review and documentary analysis. Learner focus groups, maths teachers, teacher union representatives and school principals formed the backbone of research respondents in this project. The results show immense and unrelenting prevalence of inequalities and variations between former white and former black schools in terms of almost all aspects of teaching and learning processes. The essence of the results is that for the South African education system to achieve equitable learner performance across all schools, it must first achieve equity in terms of teaching and learning processes and needs.

In theory, the South African government advocates additive bilingual education over subtractive bilingual education. However, this study shows that subtractive bilingual education supersedes additive bilingual education mainly because the official African languages of South Africa are being marginalised and not utilised as languages of teaching and learning in schools. The majority of isiZulu speaking learners in KwaZulu-Natal are underperforming academically under a subtractive bilingual educational system. The findings of this study acknowledge that there are numerous contributing factors to this problem, but the most obvious is that isiZulu speaking learners are compelled to write their examinations in English. This study employed a triangulation approach where various literary sources were consulted to illustrate how English has emerged as a dominant language on the local and global stage, and how this has affected the status and use of minority languages. Qualitative approaches were used to gather data from Grade 10 to 12 isiZulu speaking learners who attend the so-called 'Black schools' in the district of Pinetown, in KwaZulu-Natal. Questionnaires and experimental tests were used as the main instruments for gathering data from learners. One-on-one interviews were conducted with educators and other relevant stakeholders. The observation technique was also utilised to monitor the behaviour of isiZulu speaking learners in both affluent and previously disadvantaged schools. By examining Cummins’ interdependency hypothesis (1979, 1996 and 2000) as a theoretical framework, this research study has proven that the continued use of English as the only language of teaching and learning in South African ‘Black schools’ has a negative impact on the academic achievements of the KwaZulu-Natal isiZulu speaking learners. The study, therefore, calls for the introduction of a language policy that will promote dual bilingual education where both isiZulu and English are used as the languages of teaching and learning throughout the KwaZulu-Natal isiZulu speaking learners’ scholastic years. The study has proven that this approach to education will facilitate better understanding of the subject matter and thus curb the high failure rate, especially in the so called 'Black schools'. / African Languages / D. Litt. et Phil. (African Languages)

In theory, the South African government advocates additive bilingual education over subtractive bilingual education. However, this study shows that subtractive bilingual education supersedes additive bilingual education mainly because the official African languages of South Africa are being marginalised and not utilised as languages of teaching and learning in schools. The majority of isiZulu speaking learners in KwaZulu-Natal are underperforming academically under a subtractive bilingual educational system. The findings of this study acknowledge that there are numerous contributing factors to this problem, but the most obvious is that isiZulu speaking learners are compelled to write their examinations in English. This study employed a triangulation approach where various literary sources were consulted to illustrate how English has emerged as a dominant language on the local and global stage, and how this has affected the status and use of minority languages. Qualitative approaches were used to gather data from Grade 10 to 12 isiZulu speaking learners who attend the so-called 'Black schools' in the district of Pinetown, in KwaZulu-Natal. Questionnaires and experimental tests were used as the main instruments for gathering data from learners. One-on-one interviews were conducted with educators and other relevant stakeholders. The observation technique was also utilised to monitor the behaviour of isiZulu speaking learners in both affluent and previously disadvantaged schools. By examining Cummins’ interdependency hypothesis (1979, 1996 and 2000) as a theoretical framework, this research study has proven that the continued use of English as the only language of teaching and learning in South African ‘Black schools’ has a negative impact on the academic achievements of the KwaZulu-Natal isiZulu speaking learners. The study, therefore, calls for the introduction of a language policy that will promote dual bilingual education where both isiZulu and English are used as the languages of teaching and learning throughout the KwaZulu-Natal isiZulu speaking learners’ scholastic years. The study has proven that this approach to education will facilitate better understanding of the subject matter and thus curb the high failure rate, especially in the so called 'Black schools'. / African Languages / D. Litt. et Phil. (African Languages)