Fixing the leaky pipeline: curriculum misalignment and STEM transition barriers in South Africa - a convergent mixed-methods study

Ivan Magadza

doi:10.55056/cte.1135

Authors

Ivan Magadza University of South Africa https://orcid.org/0000-0002-3936-0738

DOI:

https://doi.org/10.55056/cte.1135

Keywords:

STEM education, leaky pipeline, Mathematical Literacy, curriculum alignment, engineering readiness, teacher capacity, 4IR

Abstract

South Africa's Science, Technology, Engineering, and Mathematics (STEM) education pipeline continues to face critical attrition, particularly during the transition from secondary schooling to post-secondary engineering pathways. This study examines how subject streaming, especially the widespread placement of learners into Mathematical Literacy, affects preparedness for both Technical and Vocational Education and Training (TVET) and university-level engineering studies. Employing a convergent mixed-methods design within an interpretivist paradigm, the research integrated structured surveys, semi-structured interviews, and focus group discussions. Purposive and stratified sampling enabled representation across rural, peri-urban, and urban contexts, engaging 120 qualitative participants (policymakers, principals, and STEM lecturers) and 180 quantitative respondents (secondary learners, STEM teachers, and tertiary students). Thematic analysis identified five systemic challenges: (1) curriculum misalignment as a structural barrier, (2) curriculum tracking and exclusion through Mathematical Literacy, (3) teacher capacity deficits in STEM pedagogy, (4) institutional fragmentation and policy incoherence, and (5) persistent urban-rural inequalities in STEM access. Quantitative data corroborated these findings, with 72% of teachers reporting insufficient training and 63% of tertiary students indicating low preparedness for engineering studies. The study recommends systemic reforms, including vertical curriculum articulation, bridging programs, and sustained STEM teacher development, to reduce attrition and strengthen South Africa's STEM-to-engineering pipeline for the Fourth Industrial Revolution.

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References

Abe, E.N. and Chikoko, V., 2020. Exploring the factors that influence the career decision of STEM students at a university in South Africa. International Journal of STEM Education, 7(1), p.60. Available from: https://doi.org/10.1186/s40594-020-00256-x. DOI: https://doi.org/10.1186/s40594-020-00256-x

Assan, T.E.B., 2019. Pedagogy of Learning and Teaching: A Phenomenographic Perspective from Selected Classrooms in Rural South Africa. Africa Education Review, 16(6), pp.4–21. Available from: https://doi.org/10.1080/18146627.2018.1464694. DOI: https://doi.org/10.1080/18146627.2018.1464694

Bates, A., 2013. Transcending systems thinking in education reform: implications for policy-makers and school leaders. Journal of Education Policy, 28(1), pp.38–54. Available from: https://doi.org/10.1080/02680939.2012.684249. DOI: https://doi.org/10.1080/02680939.2012.684249

Blickenstaff, J.C., 2005. Women and science careers: leaky pipeline or gender filter? Gender and Education, 17(4), pp.369–386. Available from: https://doi.org/10.1080/09540250500145072. DOI: https://doi.org/10.1080/09540250500145072

Braun, V. and Clarke, V., 2021. Thematic Analysis: A Practical Guide. London: Sage. DOI: https://doi.org/10.4135/9781036232078.n9

Case, J., Marshall, D. and Grayson, D., 2013. Mind the gap: Science and engineering education at the secondary–tertiary interface. South African Journal of Science, 109(7/8), p.5. Available from: https://doi.org/10.1590/sajs.2013/20120113. DOI: https://doi.org/10.1590/sajs.2013/20120113

Christiansen, I.M., 2007. Mathematical literacy as a school subject: Mathematical gaze or livelihood gaze? African Journal of Research in Mathematics, Science and Technology Education, 11(1), pp.91–105. Available from: https://doi.org/10.1080/10288457.2007.10740614. DOI: https://doi.org/10.1080/10288457.2007.10740614

Creswell, J.W., 2014. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. Thousand Oaks, CA: Sage. Available from: https://www.researchgate.net/profile/Leopold-Hamminger/post/Can_you_help_me_clarify_what_type_of_qualitative_research_design_to_use/attachment/59d64d4579197b80779a6db2/AS%3A487475249455105%401493234564396/download/Creswell+-+Research+Design.pdf.

Department of Basic Education, 2018. Professional Development Framework for Digital Learning.Pretoria. Available from: https://www.education.gov.za/Portals/0/Documents/Publications/Digital%20Learning%20Framework.pdf.

Department of Basic Education, 2024. South African 2023 Trends in International Mathematics and Science Study (TIMSS) Highlights Report. Pretoria. Available from: https://tinyurl.com/3ds75acz.

Edwards, D., Buckley, S., Chiavaroli, N., Rothman, S. and McMillan, J., 2023. The STEM pipeline: pathways and influences on participation and achievement of equity groups. Journal of Higher Education Policy and Management, 45(2), pp.206–222. Available from: https://doi.org/10.1080/1360080X.2023.2180169. DOI: https://doi.org/10.1080/1360080X.2023.2180169

Global Education Monitoring Report Team, 2023. Global Education Monitoring Report 2023: Technology in education: A tool on whose terms? Paris: UNESCO. Available from: https://doi.org/10.54676/UZQV8501. DOI: https://doi.org/10.54676/UZQV8501

Global Education Monitoring Report Team, 2024. Global Education Monitoring Report 2024: Gender report: Technology on her terms. Paris: UNESCO. Available from: https://doi.org/10.54676/ZKEZ6729. DOI: https://doi.org/10.54676/ZKEZ6729

Govender, J. and Moodley, M., 2012. Effect of National Senior Certificate maths on the pass rate of first-year Engineering physics. South African Journal of Science, 108(7/8), p.830. Available from: https://doi.org/10.4102/sajs.v108i7/8.830. DOI: https://doi.org/10.4102/sajs.v108i7/8.830

Greene, J.C., Caracelli, V.J. and Graham, W.F., 1989. Toward a Conceptual Framework for Mixed-Method Evaluation Designs. Educational Evaluation and Policy Analysis, 11(3), pp.255–274. Available from: https://doi.org/10.3102/01623737011003255. DOI: https://doi.org/10.3102/01623737011003255

Hwa, Y.Y., 2022. “Our system fits us”: comparing teacher accountability, motivation, and sociocultural context in Finland and Singapore. Comparative Education, 58(4), pp.542–561. Available from: https://doi.org/10.1080/03050068.2022.2102754. DOI: https://doi.org/10.1080/03050068.2022.2102754

Khoza, S.B., 2025. Justice in Curriculum: Coming Closer to Educating the Natural Reality of the Fourth or Fifth Industrial Revolution (4IR/5IR). Africa Education Review, 21(3), pp.1–11. Available from: https://doi.org/10.1080/18146627.2026.2626288. DOI: https://doi.org/10.1080/18146627.2026.2626288

Korstjens, I. and Moser, A., 2018. Series: Practical guidance to qualitative research. Part 4: Trustworthiness and publishing. European Journal of General Practice, 24(1), pp.120–124. Available from: https://doi.org/10.1080/13814788.2017.1375092. DOI: https://doi.org/10.1080/13814788.2017.1375092

Luneta, K., 2024. Revisiting the shortage of effective Mathematics teachers in Southern Africa. African Journal of Teacher Education and Development, 3(1), p.a86. Available from: https://doi.org/10.4102/ajoted.v3i1.86. DOI: https://doi.org/10.4102/AJOTED.v3i1.86

Maharaj, N. and Chauke, T.A., 2025. Teachers’ Challenges in the Rural Schools in South Africa. Educational Process: International Journal, 16, p.e2025235. Available from: https://doi.org/10.22521/edupij.2025.16.235. DOI: https://doi.org/10.22521/edupij.2025.16.235

Mahlomaholo, S. and Tsotetsi, C.T., 2022. Exploring Strategies to Strengthen Continuing Professional Development of Teachers in Rural South Africa. Journal of Higher Education in Africa, 13(1–2), pp.45–73. Available from: https://doi.org/10.57054/jhea.v13i1-2.1517. DOI: https://doi.org/10.57054/jhea.v13i1-2.1517

Maringe, F. and Osman, R., 2016. Transforming the post-school sector in South Africa: Limits of a skills-driven agenda. South african journal of higher education, 30(5), pp.120–140. Available from: https://doi.org/10.20853/30-5-616. DOI: https://doi.org/10.20853/30-5-616

Meadows, D.H., 2008. Thinking in Systems: A Primer. London: Earthscan. Available from: https://research.fit.edu/media/site-specific/researchfitedu/coast-climate-adaptation-library/climate-communications/psychology-amp-behavior/Meadows-2008.-Thinking-in-Systems.pdf.

Mertens, D.M., 2023. Research and Evaluation in Education and Psychology: Integrating Diversity With Quantitative, Qualitative, and Mixed Methods. 6th ed. Sage Publications.

Mhlanga, D. and Moloi, T., 2020. COVID-19 and the Digital Transformation of Education: What Are We Learning on 4IR in South Africa? Education sciences, 10(7), p.180. Available from: https://doi.org/10.3390/educsci10070180. DOI: https://doi.org/10.3390/educsci10070180

Mkhonto, B.S. and Mubangizi, B.C., 2024. Digital Divide or Digital Bridge? Evaluating the Impact of ICT Integration in South Africa’s Rural Schools. International Journal of Social Science Research and Review, 7(7), pp.132–145. Available from: https://doi.org/10.47814/ijssrr.v7i7.2142. DOI: https://doi.org/10.47814/ijssrr.v7i7.2142

Mouton, M. and Rewitzky, I.M., 2025. Opportunity and outcome: A quantitative evaluation of the STEM extended curriculum programme at a research-intensive university. South African Journal of Higher Education, 39(2), pp.151–171. Available from: https://doi.org/10.20853/39-2-5927. DOI: https://doi.org/10.20853/39-2-5927

Mukeredzi, T.G., 2014. Re-envisioning teaching practice: Student teacher learning in a cohort model of practicum in a rural South African context. International Journal of Educational Development, 39, pp.100–109. Available from: https://doi.org/10.1016/j.ijedudev.2014.08.010. DOI: https://doi.org/10.1016/j.ijedudev.2014.08.010

Muremela, G., Kutame, A., Kapueja, I. and Adigun, O.T., 2023. Retaining scarce skills teachers in a South African rural community: an exploration of associated issues. African Identities, 21(4), pp.743–759. Available from: https://doi.org/10.1080/14725843.2021.1965864. DOI: https://doi.org/10.1080/14725843.2021.1965864

Ngoveni, M.A., Mphuthi, G.T., Maile, L.M., Mulaudzi, R.V., Tefo, R.M. and Pitsoane, E.M., 2025. Willing but Underserved: Interpreting Digital Training Needs of Grade 8–12 Teachers in a Rural Libangeni Circuit. Education Sciences, 15(11), p.1557. Available from: https://doi.org/10.3390/educsci15111557. DOI: https://doi.org/10.3390/educsci15111557

Ngwenya, T. and Chaba, P., 2024. Mathematics Education in South African Schools (Grades 1–12): A Systems Dynamics Approach from an Engineering Education Perspective. Proceedings of the International Conference on Industrial Engineering and Operations Management. IEOM Society International, Africa ’24. Available from: https://doi.org/10.46254/af05.20240143. DOI: https://doi.org/10.46254/AF05.20240143

North, M., 2017. In Pursuit of an Orientation for Life-preparation: A Case Study of the Subject Mathematical Literacy in South Africa. African Journal of Research in Mathematics, Science and Technology Education, 21(3), pp.234–244. Available from: https://doi.org/10.1080/18117295.2017.1364045. DOI: https://doi.org/10.1080/18117295.2017.1364045

Petrosino, A.J., Sherard, M.K. and Tharayil, S.A., 2020. The Education Philosophy, Theories and Models That Enable STEM Policy Integration. In: C. Zintgraff, S.C. Suh, B. Kellison and P.E. Resta, eds. STEM in the Technopolis: The Power of STEM Education in Regional Technology Policy. Cham: Springer International Publishing, pp.51–63. Available from: https://doi.org/10.1007/978-3-030-39851-4_3. DOI: https://doi.org/10.1007/978-3-030-39851-4_3

Photo, P., 2026. Empowering Rural STEM teachers in Indigenous Knowledge and Technology Integration: A Qualitative Longitudinal Study. African Journal of Research in Mathematics, Science and Technology Education, 30(1), pp.43–57. Available from: https://doi.org/10.1080/18117295.2025.2597717. DOI: https://doi.org/10.1080/18117295.2025.2597717

Powell, W.W. and Snellman, K., 2004. The Knowledge Economy. Annual Review of Sociology, 30, pp.199–220. Available from: https://doi.org/10.1146/annurev.soc.29.010202.100037. DOI: https://doi.org/10.1146/annurev.soc.29.010202.100037

Ramnarain, U. and Molefe, P., 2012. The readiness of high school students to pursue first year physics. Africa Education Review, 9(1), pp.142–158. Available from: https://doi.org/10.1080/18146627.2012.683608. DOI: https://doi.org/10.1080/18146627.2012.683608

Ramulumo, M. and Mnguni, L., 2023. A qualitative comparison of the intended curriculum ideologies of STEM subjects in South Africa. Curriculum Perspectives, 43(2), pp.145–155. Available from: https://doi.org/10.1007/s41297-023-00205-y. DOI: https://doi.org/10.1007/s41297-023-00205-y

Saunders, B., Sim, J., Kingstone, T., Baker, S., Waterfield, J., Bartlam, B., Burroughs, H. and Jinks, C., 2018. Saturation in qualitative research: exploring its conceptualization and operationalization. Quality & Quantity, 52(4), pp.1893–1907. Available from: https://doi.org/10.1007/s11135-017-0574-8. DOI: https://doi.org/10.1007/s11135-017-0574-8

Taber, K.S., 2018. The Use of Cronbach’s Alpha When Developing and Reporting Research Instruments in Science Education. Research in Science Education, 48(6), pp.1273–1296. Available from: https://doi.org/10.1007/s11165-016-9602-2. DOI: https://doi.org/10.1007/s11165-016-9602-2

World Bank Group, 2023. Transforming Education Across Eastern and Southern Africa. Available from: https://www.worldbank.org/en/news/immersive-story/2023/01/24/transforming-education-across-eastern-and-southern-africa.

Zantout, H. and Dabir-Alai, P., 2007. The knowledge economy in the context of European Union policy on higher education. Education, Knowledge and Economy, 1(2), pp.125–143. Available from: https://doi.org/10.1080/17496890601129397. DOI: https://doi.org/10.1080/17496890601129397