Goodman, L2026-02-092026-02-092024https://hdl.handle.net/10566/21935This thesis is part of a PhD study investigating the impact of a blended learning model on the understanding of functions in mathematics among first-year students enrolled in a Technical and Vocational Education and Training college in the Western Cape, South Africa. A mixedmethods approach was employed to examine the effectiveness of the blended learning model, which combined traditional face-to-face instruction with digital resources and online activities. The face-to-face component involves a dialogical argumentation instruction approach, while blended learning incorporates computer-mediated instruction.enThesis