Abstract
Constructive approach to learning focuses on the learner's behavior, enabling a self-adapted exposure to knowledge that is precisely tailored to the learner's needs and background. The building blocks for such adaptive knowledge construction are the evolving learning objects (LOs) which are self-contained entities that encapsulate a segment of knowledge as well as some metadata attributes and procedures. In addition to complementing the standard specification of learning objects to incorporate self- adaptive learning features within the LO construct, the paper also proposes a learner-modeling technique which learns from the learners about the learners. In this dynamic learner modeling approach, past learning experiences are reused to stereotype future learners. The proposed adaptive learning architecture in this paper supports both navigation and presentation learning adaptivity.