From LCT to Power Trio - The Cooperation Between SFL and Sociology
International Journal of Education, Culture and Society
Volume 2, Issue 6, December 2017, Pages: 213-217
Received: Mar. 21, 2017; Accepted: Apr. 1, 2017; Published: Jan. 10, 2018
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Lu Huang, School of Foreign Languages and Cultures, Nanjing Normal University, Nanjing, China
Liping Chen, School of Foreign Languages and Cultures, Nanjing Normal University, Nanjing, China
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Over the past decade, systemic functional linguistics and Legitimation Code Theory (LCT) has been cooperating to offer insight into education, especially knowledge building. In the special issue of Linguistics and Education in 2013, Karl Maton highlights the significance of semantic waves in knowledge building. These semantic waves involve recurrent movements in the semantic gravity and semantic density. Based on this theory, considering the technicality and abstractness of high stake reading and writing expected from students, the functional linguist J. R. Martin put forward the practical concepts of power trio, including power words, power grammar and power composition as tools for teachers to use for purposes of knowledge building from the perspective of lexicon, clause and discourse. In this paper, specific attention is first paid to introduce the development of LCT to power trio. Finally, the paper will move on to raise important issues regarding the problems lies in the theories.
LCT, Semantic Waves, Power Trio
To cite this article
Lu Huang, Liping Chen, From LCT to Power Trio - The Cooperation Between SFL and Sociology, International Journal of Education, Culture and Society. Vol. 2, No. 6, 2017, pp. 213-217. doi: 10.11648/j.ijecs.20170206.19
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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