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Fuse-N is a distributed platform-independent educational environment specializing in algorithmic concepts. The platform is extensible, Web-based, and graphical. Fuse-N provides tools for carrying out administrative tasks involved in teaching such as distributing, supporting, and grading assignments. Developing new educational components is simple, and the platform provides intuitive mechanisms for linking and expanding upon existing components. Since the functionality of Fuse-N is manifold, in this paper we will explore it in terms of three levels of increasing abstraction. At the first level are specific algorithmic concepts. At the second level are user-specified compositions of those concepts. At the third level are the inter-user interactions that take place throughout Fuse-N. Emphasis will be on the interface and exposed functionality of Fuse-N. Technical and implementation details are covered in an appendix. Although this thesis discusses many aspects of Fuse-N, it focuses on the development of a set of contextual interaction tools in the third level of the system. These tools allow students and instructors to remotely share portions of their respectiv