This paper focuses on educational insights that led to the development of the Mobile Learning Exploration System (MoLES). We explain how the system, as part of wider research on ambient learning spaces, has been developed on the basis of systemic-constructivist pedagogy, which emphasizes the design of learning environments for contemporary teaching. For the design of such learning environments key elements of educational theories play an important role. With the recent redesign of MoLES - now part of ambient learning spaces where different applications use the same multimedia objects - we introduce semantic multimedia cloud computing and linked data models as a key educational element in the context of situated and mobile learning.