Elements of pedagogical content knowledge displayed by mathematics teachers in the teaching of trigonometry

Abstract: Trigonometry is an important topic within the Further Education and Training (FET) mathematics curriculum for South African high schools. For this study, trigonometry is a topic within mathematics, which includes concepts such as the sine and cosine rules, the reduction formulae, co-functions, trigonometric identities, trigonometric equations and graphs of sine, cosine and tangent functions...M.Ed. (Mathematics Education