The Triangle Model - The Contribution of the late Professor Alex H Johnstone

Norman Reid

Abstract


Having established the key role of the working memory in understanding and that the limited capacity of the working memory controlled success in understanding, Johnstone considered the nature of chemistry and why a subject like chemistry (along with other sciences and mathematics) caused young learners so many difficulties. This led him to develop his ‘triangle model’ and this has proved to be a very useful way to guide curriculum planners and teachers to help to make a subject like chemistry more accessible to learners. In developing the triangle model, he established that it is the way the sciences are presented in typical curricula and textbooks that made the problem a major one for learners. This review outlines the key findings and their implications for learning and then concludes by suggesting key areas for future research. The overall goal in all future work is to develop new understandings that can lead to practices that enable future learners to move towards greater success in understanding in the sciences.

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References


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