Teaching and Learning the Mathematical Exponential and Logarithmic Functions: A Transformation Approach

Abstract

This paper discusses the benefits of using a transformation approach in the teaching and learning of exponential and logarithmic functions in a grade 12 mathematics classrooms. The study followed a pre-test – intervention – post-test design with qualitative data informing quantitative data. Data collection strategies included a test (on exponential and logarithmic functions) that was administered to learners before and after the intervention. The intervention strategy was done via the teaching of exponential functions through transformation approach in attempt to reinforce understanding of the concept. A convenience sample of 38 experimental and 40 comparison groups of grade 12 learners participated in the study reported in this article from two different schools to avoid contaminating data collected. The findings indicated that the interventional strategy had an impact on academic performances of the learners. Furthermore, learners had begun to understand and apply the learnt strategy when solving problems related to both exponential and logarithmic functions.

DOI: 10.5901/mjss.2013.v4n13p177