Although researchers agree with the strengths of an English-medium instruction (EMI) in addressing internationalization of a non-English higher education (HE) context, its implementation in classrooms has been widely criticized, mostly because of ineffective delivery of course content and a lack of evidence of English improvement. Grounded upon a critical review of the current state of internationalization of Korean HE and the subsequent examination of supplementary interview data from 15 college students who have taken EMI courses, this study proposes a model which integrates critical factors of EMI into one framework. This model aims at guiding the EMI policy from initiation to implementation. A major feature of this model is blended learning as a strategy to address the shortcomings of current EMI in this context and to facilitate the allocation of diverse online materials to scaffold EMI instruction. The benefits of the approach are presented from the perspectives both of policy-makers and of classroom participants.