This article argues that learner-centred education needs to shift from a discussion only on pedagogical activities such as group-work and other cooperative learning strategies. It suggests that the focus of learner-centred education should be on the cultural world of the African child and how this influences the way in which he/she learns Western science. The African child often experiences cognitive dissonance/perturbation when learning Western science. The article draws on insights from the theory of collateral learning which was originally developed by Jegede. It argues that unless policymakers and teachers take into consideration the cultural frameworks of learners, there will not be a sound basis for improving school science and school mathematics in South Africa. Spending more on resources and increasingly testing learners, as is currently done in South Africa, will not improve school science in South Africa. Improving school science in part depends on rethinking leaner-centred education, which means critically looking at the important role that cultural frameworks of learners play in learning Western science.