1997 Volume 2 Number 2
Compass Constructions: A Vehicle For Promoting Understanding
And Higher Order Thinking Skills
Lim Suat Khoh
Abstract: Compass constructions refer to standard procedures for constructing geometrical
entities such as angle bisectors using compasses and straight edge only. These
constructions are usually taught as a series of fixed steps without any justification
of why the methods work. This article outlines a scheme of activities which
provides links between the compass constructions required in the Singapore
Mathematics Syllabus and other topics in the syllabus with extensions to problem
Solving.