concept space, rating, navigation

Navigation of a student over learning objects can be solved by using concept space of a domain which contains information about structural and dependency relations between concepts. Every learning object has defined relations to several concepts. Relations which exist in the learning object space also exist in the concept space between the corresponding concepts. We present an evaluation of controlled experiment comparing PageRank and our algorithm used for navigation which utilizes statically calculated ratings of concepts, based on the concept?s relations and dependencies to other concepts. We created a learning course Lisp for our students and present the results from our evaluation testing of a navigation scheme which uses concept?s rating for dynamic presentation and ordering learning objects with regards to the actual student?s model.