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Pedagogy of stereographic projection

Blenkinsop, Thomas G. 1999. Pedagogy of stereographic projection. Journal of African Earth Sciences 28 (4) , pp. 897-902.

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Abstract

Three sorts of problem are encountered by students learning stereographic projection. Lack of familiarity with compass directions and with the specification of planar and linear orientations is the most fundamental problem. The second problem is one of poor visualisation which prohibits the correct understanding of the principles and practice of projection, although students can sometimes perform remarkably well on certain exercises without this understanding. A third problem is a lack of interest or appreciation of the usefulness of the technique. A solution to the first problem is to provide a thorough grounding in compass directions, and concepts of strike, dip, dip direction, plunge and plunge bearing immediately before teaching stereographic projection. Visual aids, such as a transparent hemisphere to represent half of the projection sphere, and a large stereonet, are helpful for visualisation. Estimation and sketching exercises help to develop an understanding of the geometry of projection. Computer-aided teaching and plotting is recommended after an introduction to manual techniques. Interest can be stimulated through the use of exercises based on real geological maps.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: L Education > L Education (General)
Q Science > QE Geology
Publisher: Elsevier
ISSN: 1464-343X
Last Modified: 04 Jun 2017 05:19
URI: http://orca.cf.ac.uk/id/eprint/50672

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