In South Africa, the Department of Basic Education has continuously referred to the lack of students with good passes in mathematics and physical science to be able to enroll for medical and financial sector degrees. The reason for the lack of good passes has been attributed to the availability of resources and the training of teachers. Many universities have developed interventions and strategies to assist students who enter their institutions. Using the cultural historical activity theory, this chapter argues that technology in the form of podcasts can mediate the problem of under-prepared mathematical students by providing supplemental instruction. The chapter justifies the choice of podcasts and presents literature on how and why podcasts will mediate learning.