“…In reviewing the reported MSL designs, we would also like to further distinguish "formal learning in informal settings" into two sub-types: (1) Teacher-led outdoor learning activities where students learn in groups, most likely within a confined time period (e.g., Kurti, Spikol, & Milrad, 2008;J.-L. Shih, et al, 2010); (2) Students to carry out teacher-instructed learning activities beyond the formal class hours and/or teacher-led outdoor learning activities at their own convenience, such as online discussions (e.g., H.-J. Huang, 2007), ongoing game playing (e.g., Metcalf, et al, 2008), or data collection or artifact creation (largely incidental encounters or improvisations) in daily life (most likely within 1:1, 24x7 access programs, e.g., (1) and (2) fall into the "externally initiated and structured" and "externally initiated but (semi-)internally structured" categories respectively.…”