Practical & Theoretical Foundations
*Situated cognition (a.k.a., situated learning). This principle and the related instructional strategy called "anchored instruction" is the foundation for how and why I should use the Internet in my courses: to address topics through learning activities that take place in that medium rather than primarily through lectures and reading.
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*Cognitive apprenticeship - provides a framework for the learning of skills through instructional tactics such as modeling, coaching, fading, and scaffolding. Several meta-cognitive tactics (articulation, elaboration, self-monitoring, exploration) can consolidate newly acquired learning of skills in a domain of practice. These tactics can be articulated as goals by an instructor for learners in their strategic use the online materials and communications available on an e-blended Web site.      
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*Shared cognition - supports learners' need to be immersed in communication about what they are learning (with other learners, experts, instructors, and even with physical artifacts that support thinking and learning). If this social learning need is supported properly, they are likely learn better and more from the resulting feedback and motivation.
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*Collaborative learning or peer-teaching helps learners consolidate their newly acquired understanding as they give advice or help build understanding as they receive it. This learning strategy can be supported through asynchronous software tools such as e-mail and Web-based discussion boards as well as the use of synchronous online software such as text-based chat and audio and/or video conferencing.