If it doesn’t work in practice, then it’s not good theory.
Julian Edge
Or at least that’s what one of my doctoral supervisors used to say. The tension between theory and practice is, I think, one of the most common complaints I come across in teacher discourse (pay being by far the commonest). I have repeatedly made the point that such thinking is unhelpful, and that that it may be more productive to view theory and practice as complementary to each other. In this perspective, theory is best seen as a refined abstraction of what happens in the classroom.
In this article, I argued for inverting the perceived relation between theory and practice: rather than apply whatever (capital T) Theory is passed on top-down from the Ivory Tower to the classrooms, it may be more fruitful – I suggested – for teachers to be empowered to generate their own, locally relevant, (small-t) theories.
This is not exactly a paradigm-shattering suggestion: similar points have been made, more compellingly and with more eloquence, by Adrian Holliday, Braj Kumaravadivelu, and Julian Edge. However, it is something I feel strongly about, especially with regard to (foreign language) education in Greece.
What I want to do in this post, however, is approach this topic from a different tack, and argue against what I think might be some serious misconceptions about the ‘practice first’ argument.
In a recent discussion, a teacher asked for advice on a problem he was having: Apparently, his Director of Studies or Department Head insisted that students not be assigned vocabulary homework in preparation for the next class session. The teacher disagreed with this recommendation, and claimed that:
But, I say it is better to look at [vocabulary] before coming to the class to have something in their mind […] If they don’t find the meaning of [the words], how can they say their meanings and know??? Then, they don`t enjoy the class and they are puzzled and bored. I know that they can know and find the meaning from context or other things. I can not accept [the supervisor’s] way.
In my response, I suggested that the teacher should take a closer look at the knowledge statements he made (e.g., “[the students] are puzzled and bored”) and examine what evidence he had in support of these statements. I felt that the best way to approach such a problem would be a small-scale investigation in the teacher’s class, which would endeavour to find out if prior vocabulary knowledge did indeed make a difference in his students’ learning experience. I expected that such an enquiry might corroborate the teacher’s conviction, or perhaps it might reveal a difference between what he and his students considered effective. Either way, it would lead to increased awareness of his students’ needs and preferences, which I felt to be a requisite to informed practice.
The teacher replied that:
They [presumably the people he reported to?] think they are doing right but I don’t believe that. […] I think my way is better. [The students] are ready in class by having a pre-study.
This seemed to conclude the discussion to his satisfaction, and I was left with the impression that his original ‘request for advice’ only served as a ploy for validating his pre-conceptions with my ‘expert’ opinion.
I think it should be clear that when arguing for the primacy of teacher knowledge over theory, this is not what I mean at all. “It works for me” may be a useful starting point, as is any knowledge that teachers embody. However, in order to challenge whatever received knowledge is passed on by research and the powers-that-be, such locally-relevant knowledge needs to satisfy three more conditions.
- First, such methodological preference should be empirically grounded: that is, it must stem from rigorous observation of practice, and the links between the emerging teacher theory and the evidence that supports it must be transparent. What I have in mind is small-scale action research projects, which involve identifying a problem, trying out a solution, collecting whatever data in whatever form is appropriate (be that classroom observation, journal entries, tests or informal discussions with anyone involved), and evaluating the effectiveness of the solution.
- The second condition is that, just like capital-T Theory, small-t theories must be provisional: they are only in place until a more useful theory can be generated. It follows that there is a need for teachers to actively challenge their own knowledge: one needs to be on the lookout for evidence that disrupts, rather than confirms, whatever one happens to believe. When such evidence cannot be found, the theory is robust; when it is found, the theory can be refined. In the discussion quoted above, “I think my way is better” should be the prompt of theory generation, not a conclusion.
- Last, such a theory must be centred on the students: what seems very odd to me about the exchange quoted above is that the problem was framed as a difference in opinion between the teacher and the people he reported to, but no reference was made to the people who were to be affected the most. In fact, my suggestion that the teacher turn to the learners for an answer did not seem to register. Such an attitude is regrettably common, but I don’t think it is necessary to spell out why it is both practically short-sighted and ethically unacceptable.
To sum up, it is my strong belief that the teaching profession is best served by conceptualisations of theory that are closely connected to practice, derive from it and loop back into it. Such locally-relevant theory needs to be informed by evidence, committed to change and serve the students’ needs. When these conditions are not met, claims about the primacy of teacher knowledge seem little more than a thinly veiled excuse for opportunistic methodology.
Image Credit: The Leaf Project @ Flickr | CC BY-SA 2.0
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About me
Achilleas Kostoulas is an applied linguist and language teacher educator at the Department of Primary Education, University of Thessaly, Greece. He holds a PhD and an MA in Teaching English to Speakers of Other Languages from the University of Manchester, UK and a BA in English Studies from the National and Kapodistrian University of Athens, Greece.
His research explores a wide range of issues connected with language (teacher) education, including language contact and plurilingualism, linguistic identities and ideologies, language policy and didactics, often using a Complex Dynamic Systems Theory perspective to tease out connections between them. Some of his work includes the research monograph The Intentional Dynamics of TESOL (2021, De Gruyter; with Juup Stelma) and the edited volume Doctoral Study and Getting Published (2025, Emerald; with Richard Fay), as well as numerous other publications.
Achilleas currently contributes to several projects that bring together his long-standing interests in language education, teacher development, and the social dimensions of language learning. As the coordinator of the AI Lang (Artificial Intelligence in Language Education) expert team at the European Centre for Modern Languages of the Council of Europe, he is active in developing principles and resources to help educators make informed, pedagogically grounded use of AI in their teaching. He also leads the University of Thessaly team of ReaLiTea (Research Literacy of Teachers), a project that supports language teachers to engage with, and contribute to, educational research. Alongside these, he contributes to LocalLing (Revitalisation of Linguistic Diversity and Cultural Heritage), a Horizon-funded initiative for the preservation of heritage and minority languages globally.
In addition to the above, Achilleas is the (co)editor-in-chief of the European Journal of Education and Language Review, and welcomes contributions that explore the dynamic intersections between language, education, and society.
About this post
This blog is a space for slow, reflective thinking about applied linguistics, language education, professional development, and the role of technology in language teaching and learning. Transparency about process, tools, and authorship is part of that commitment.
- I wrote this post on 13th October 2013. On 24th September 2026, I did some copy-editing and updated it to match the aesthetics and functionality of the rest of the blog.
- The views expressed here are personal and do not necessarily reflect those of the University of Thessaly or any other entity with which I am affiliated.
- The featured image is by The Leaf Project @ Flickr , who are kindly sharing it with a CC BY-SA 2.0 license.



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