Abstract
Dr Math is an online math tutoring service hosted by the CSIR Meraka Institute in South Africa, which aims to support secondary school learners with Mathematics. The service is predominantly accessed through the mobile social networking service MXit. Since 2007, students from the Faculty of Engineering, the Built Environment and Information Technology (EBIT) at the University of Pretoria, have been assisting “Dr Math” in fulfillment of a compulsory undergraduate module, Community-Based Project. They have supported 28,000 registered users in user initiated interactions. This purpose of this paper is to describe the mobile scaffolding environment and scaffolding practices as well as the tutor support that enhance the Dr Math service as a sustained example of mobile learning.
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