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Understanding, mastering and applying new ideas in geography didactics is the most proper way to achieve a high professionalism in geography education in Bulgaria. Such professionalism implies three prerequisites: a scientifically based (and not only intuitive) professional activity, high and sustainable results and a clear positive attitude towards it. The high professionalism is the required basis...
This paper presents the development of the didactics of geography at the Department of Geography, Faculty of Arts, University of Ljubljana from its beginnings in the 19th century up to the present day. Important milestones are discussed and the present situation described. The author first discusses how different approaches were developed over the years, then focuses on the current situation through...
Measuring association, or the lack of it, between variables plays an important role in a variety of research areas, including education,which is of our primary interest in this paper. Given, for example, student marks on several study subjects, we may for a number of reasons be interested in measuring the lack of comonotonicity (LOC) between the marks, which rarely follow monotone, let alone linear,...
Subadditivity is the key property which distinguishes the popular risk measures Value-at-Risk and Expected Shortfall (ES). In this paper we offer seven proofs of the subadditivity of ES, some found in the literature and some not. One of the main objectives of this paper is to provide a general guideline for instructors to teach the subadditivity of ES in a course. We discuss the merits and suggest...
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