Why checking grammatical understanding is not the same as assessing grammatical acquisition
Introduction
One of the most worrying trends in MFL education, in my view, is the growing tendency to confuse successful performance in classroom assessment tasks with evidence of language acquisition, as though students correctly answering a diagnostic multiple-choice question, completing a translation, identifying a grammatical error or explaining a rule necessarily meant that they had ‘got it’.But have they? And, more importantly, what exactly have they got?
This is precisely the problem I see in Silvia Bastow’s recent blog post, “Do They Really Get It? Rethinking Formative Assessment and How to C4U (Part 1)”, which advocates mini-whiteboards, diagnostic questions, retrieval practice, interleaving and corrective feedback as ways of checking students’ understanding, yet pays insufficient attention to a fundamental distinction that decades of research in instructed second-language acquisition (ISLA) have highlighted: knowing a grammatical rule, recognising its correct application and being able to process and use it accurately, efficiently and automatically are very different things.
And surely this is a rather serious omission in an article specifically concerned with formative assessment? After all, if the whole purpose of formative assessment is to generate evidence that informs our next instructional decisions, what happens when we misunderstand what that evidence actually demonstrates? What happens when we take a correct answer as proof of learning, when all it may demonstrate is that a student can perform successfully under the very specific conditions created by the task?
Consider a student who correctly identifies elle est allée in a multiple-choice question but continues to produce elle a allé in spontaneous speech, or another who can confidently explain German verb-final word order after weil yet repeatedly gets it wrong in conversation. Or take a student who scores highly on a French tense quiz but cannot distinguish the same tenses when listening two connected speech… Has that student really ‘got it’? Or have we simply assessed the aspects of grammatical knowledge that are easiest to test, while leaving the more demanding aspects of linguistic processing and production largely untouched?
These are not minor discrepancies. They expose the limitations of such assessment tasks as indicators of developing linguistic competence, limitations which become particularly problematic when teachers interpret successful performance as evidence that a construction has been acquired and that they can safely move on.
And this brings me to a wider concern, one that I have raised repeatedly over the years: the increasingly uncritical transfer of techniques and practices from general education into MFL, often accompanied by the fashionable label ‘evidence-informed’, as though findings from cognitive psychology and general educational research could simply be transplanted into language teaching without first considering what decades of ISLA research tell us about input processing, form–meaning connections, developmental sequences and automaticity.
The danger, of course, is that we create an illusion of learning, whereby students appear successful because they perform well on the tasks we set, while crucial aspects of their developing linguistic competence remain unassessed. And if that happens, what are the consequences? Teachers may move on prematurely, misdiagnose persistent grammatical errors, devote precious classroom time to explaining rules students already know, or neglect the listening, reading and spontaneous production skills that students will eventually need when confronted with unfamiliar language in their GCSE examinations.
Because let’s not forget that, when a student sits a GCSE listening paper, there is no teacher pausing after every sentence to ask a diagnostic question, no mini-whiteboard on which to select the correct verb ending, and no helpful prompt reminding them which tense to retrieve. They have to process the language as it unfolds, identify grammatical distinctions under time pressure and construct meaning from what they hear… and if our formative assessment has consistently failed to reveal weaknesses in those processes, how well have we actually prepared them?
Badly interpreted formative assessment doesn’t merely fail to identify learning gaps; it can actively contribute to poor instructional decisions, precisely because what teachers believe students have mastered inevitably influences what they choose to teach, practise, recycle or abandon.
And that is why I find Bastow’s treatment of the issue problematic. The question is not whether mini-whiteboards, retrieval quizzes or diagnostic questions are useful, but whether the evidence they generate actually justifies the conclusions teachers draw from it. Because if we cannot distinguish between remembering a rule, recognising a form, processing it for meaning and deploying it spontaneously, then what exactly are we checking for understanding… and, more importantly, whose understanding of language acquisition really needs checking?
1. Knowing a rule is NOT the same as acquiring it
Take German weil clauses, for example, which students may have practised repeatedly through rule explanations, sentence corrections and mini-whiteboard exercises, and imagine asking a Year 10 class where the verb goes after weil. “At the end, Sir!” they confidently reply, and when you subsequently give them five sentences containing word-order errors, most correct them without difficulty. So far, so good… but what happens when, a few minutes later, you ask those same students to explain spontaneously why they dislike school?
Ich mag die Schule nicht, weil es ist langweilig.
Sound familiar? And if it does, should we automatically conclude that they haven’t understood the rule, that we need to explain it again, or that another round of corrective questions will somehow resolve the problem?
As I have often notices throughout my career, is that the issue is that students may know the rule perfectly well, and may even be able to explain and apply it successfully when their attention is explicitly directed towards it, while still lacking the processing efficiency required to retrieve and deploy the construction when simultaneously thinking about what they want to say, selecting vocabulary and organising their utterance.
Knowing ABOUT a construction and being able to USE it automatically are two very different things, as research on skill acquisition and automaticity reminds us (DeKeyser & Criado, 2013), and while explicit explanation may contribute to learning, it cannot be assumed that another explanation followed by another correct mini-whiteboard answer will produce the kind of fluent, independent performance we ultimately want.
So, when students repeatedly make the same grammatical mistake despite apparently knowing the rule, shouldn’t we at least consider whether the problem lies not in their understanding but in their ability to process and retrieve the construction efficiently?
2. What about processing grammar for meaning?
Another limitation of formative assessment that concentrates predominantly on translation, correcting errors, choosing endings and explaining rules is that it may tell us relatively little about whether students can actually process grammatical constructions for meaning when listening and reading, which, given the demands of GCSE receptive examinations, strikes me as a rather significant omission.
Consider the following French sentences:
Il a mangé.
Il mangeait.
Il mange.
Students may correctly identify the tense of each verb, explain how it is formed and translate the sentences accurately when presented in writing, but… can they distinguish these forms when they hear them in connected speech? Can they interpret the differences in meaning within a narrative, particularly when the context doesn’t make the answer obvious, or are they simply relying on familiar vocabulary and contextual clues while paying little attention to the grammatical morphology itself?
Imagine, for example, that students read a short account of a holiday and answer the comprehension questions correctly because they recognise words such as hier, plage and restaurant. Does that mean they have accurately processed the tense markers, or have they managed to reconstruct the message without really attending to them?
VanPatten’s research on input processing (1996, 2004) reminds us that learners often prioritise lexical information over grammatical morphology, particularly when the latter contributes relatively little additional meaning, while VanPatten and Oikkenon (1996) demonstrated the value of structured input activities in developing grammatical processing. And this is why I find it problematic when formative assessment of grammar focuses so heavily on whether students can identify, explain or produce forms, while paying insufficient attention to whether they can actually interpret them in meaningful input.
Before asking whether students can produce a grammatical construction, shouldn’t we establish whether they can process it accurately for meaning? And if we don’t assess that ability, how can we know whether students are developing the kind of receptive competence that GCSE listening and reading examinations demand?
3. Correct answers can be very misleading
Diagnostic multiple-choice questions are frequently presented as powerful tools for identifying misconceptions, and rightly so in certain circumstances. However, their diagnostic value depends entirely on what we are trying to establish and, more crucially, what conclusions we draw from students’ responses!
Consider a student who is asked to select the correct sentence from the following alternatives:
- Elle a allée.
- Elle est allée.
- Elle est allé.
The student selects the second option, and we congratulate ourselves because the question has apparently demonstrated that they understand the formation of the perfect tense with aller. But what exactly have we established? That they know the rule? That they remember an example from yesterday’s lesson? That they have successfully eliminated two implausible alternatives? Or simply that they have guessed correctly?
Now ask that same student to describe what their sister did last weekend without prompting, and will elle est allée emerge as readily and accurately? Possibly… but possibly not, which is precisely why a correct answer in a controlled task is evidence of successful performance in THAT task, not proof that the construction has been acquired.
The same problem arises when we interpret errors, because a wrong answer doesn’t automatically mean that the student has misunderstood the rule or that the most appropriate response is to explain it again. Perhaps the construction isn’t sufficiently automatised, perhaps competing forms are interfering with retrieval, perhaps the student is experiencing processing overload, or perhaps they simply need more meaningful exposure and appropriately designed practice.
And herein lies the limitation of diagnostic questions: although they can reveal where performance breaks down, they don’t necessarily tell us why it breaks down, particularly when the same observable error may arise from very different underlying causes.
If formative assessment is supposed to inform our instructional decisions, shouldn’t we be rather more cautious about diagnosing the cause of a problem from a single correct or incorrect answer?
4. Retrieval practice is useful. But WHAT are we retrieving?
Take a familiar translation exercise in which students areasked to translate “Yesterday we went to the beach” into Spanish and correctly produce Ayer fuimos a la playa. A successful retrieval, certainly, but let’s consider what the task actually demands, because the English prompt has already supplied the meaning, the temporal reference and much of the sentence structure, allowing students to concentrate on selecting and assembling the appropriate Spanish forms.
Now ask the same students to recount an unexpected holiday experience, without preparation, while responding to follow-up questions, and will fuimos emerge as readily? Will they select the appropriate tense while simultaneously deciding what to say, retrieving vocabulary and organising their ideas?
Not necessarily, and this is why the distinction between retrieving grammatical forms under controlled conditions and deploying them during communication matters so much.
Research by Nakata and Suzuki (2019), for example, provide evidence that interleaving grammatical exercises can improve delayed retention, while DeKeyser’s work on skill acquisition highlights the importance of appropriately designed practice in developing efficient language use. But neither finding justifies treating successful retrieval in a highly supported task as equivalent to fluent, independent production.
The type of retrieval practice matters, as does the type of performance we use to assess its effects, because while supported translation, sentence completion and grammaticality judgements can all contribute valuable evidence, they cannot, on their own, establish whether students can retrieve and manipulate the same structures when the prompts disappear.
And surely this should influence how we interpret the results of retrieval quizzes? If students consistently perform well on them but struggle to produce three spontaneous sentences, is the problem really that they need more retrieval quizzes, or that we have been assessing a rather narrow form of retrieval while neglecting the more demanding conditions under which language must eventually be used?
5. Grammar acquisition is not simply error elimination
Another concern of mine is the assumption that when students repeatedly make grammatical errors, the logical response is to explain the rule, correct the mistake and retest, as though grammar acquisition were essentially a process of identifying gaps in explicit knowledge and eliminating them through successive rounds of explanation and correction. Which, of course, is often an utter waste of time!
Don’t get me wrong; sometimes that may be precisely what is needed, but grammar development is considerably more complex, because learners do not simply accumulate rules until their internal grammar is complete; rather, they develop evolving linguistic systems in which certain constructions may remain unstable despite repeated explanations, apparently successful practice and considerable conscious knowledge…
This is precisely what Pienemann’s Processability Theory (1998) helps explain, since learners do not necessarily acquire grammatical structures in the order in which we teach them, and certain constructions require processing procedures that develop in a predictable sequence. Consequently, a student may know a rule, explain it accurately and even apply it successfully in a controlled exercise without necessarily being developmentally ready to deploy the construction spontaneously.
So, when a learner repeatedly produces weil es ist instead of weil es … ist, should we automatically assume that the original explanation was inadequate, that retrieval practice has been insufficient or that another corrective exercise will solve the problem? Or might the error reflect the current state of the learner’s developing grammatical processing system?
Of course, not every persistent error is evidence of developmental unreadiness, and we should be equally cautious about making that diagnosis without appropriate evidence, but Pienemann’s Teachability Hypothesis (1989) reminds us that instruction cannot necessarily override developmental constraints simply because we have explained a structure clearly and tested it repeatedly.
You cannot simply explain or quiz a learner into the next developmental stage, however appealing that possibility might be to teachers under pressure to demonstrate rapid progress.
Corrective feedback can certainly contribute to language development, as Lyster and Saito’s (2010) meta-analysis demonstrates, but its effectiveness does not mean that every error is best addressed through another explanation or another correction task, particularly when the learner already possesses the relevant explicit knowledge.
And if students repeatedly produce weil es ist despite being able to explain verb-final word order perfectly well, might they benefit more from meaningful processing, structured practice and opportunities to develop fluent retrieval than from yet another reminder of a rule they already know?
Explanation + correct answer ≠ acquisition, and until our formative assessment recognises that distinction, we risk responding to developmental and processing problems as though they were simply failures of memory or understanding.
6. The GCSE problem: Are we preparing students for the examination or for our classroom tasks?
And this is where the consequences become particularly serious, because while the limitations of controlled formative assessment may appear relatively harmless during an ordinary Year 10 lesson, they can become painfully obvious when students encounter the demands of GCSE examinations.
Consider a Year 11 student who consistently performs well in grammar retrieval quizzes, sentence translations and error-correction exercises, whose mini-whiteboard answers are usually correct, who can explain the difference between the perfect and imperfect tenses and who knows exactly where the verb goes after weil. Everything looks reassuring, doesn’t it? The teacher has evidence of progress, the student feels confident, and the class appears to be moving steadily towards examination readiness.
But what happens when that same student sits the GCSE?
In listening, they may struggle to distinguish j’ai joué from je jouais because they haven’t developed sufficiently rapid and accurate processing of tense morphology in connected speech; in reading, they may recognise familiar vocabulary yet misinterpret who did what, when or to whom because they overlook grammatical markers; in speaking, they may produce beautifully rehearsed answers but struggle when the examiner asks an unexpected question requiring independent retrieval and manipulation of language; and in writing, they may reproduce memorised structures accurately while finding it difficult to adapt them to an unfamiliar task.
The problem isn’t necessarily that they haven’t learned the grammar, but that their ability to retrieve grammatical knowledge in controlled conditions has developed further than their ability to process and deploy it independently, a discrepancy which research on input processing (VanPatten, 1996, 2004), skill acquisition (DeKeyser, 2013) and developmental constraints (Pienemann, 1998) gives us good reasons to anticipate.
And this is why formative assessment matters so much, because if our assessment repeatedly tells us that students have ‘got it’ simply because they can answer a diagnostic question, complete a translation or correct a grammatical error, we may seriously overestimate their examination readiness, move on prematurely and devote insufficient time to precisely those abilities that will determine how successfully they cope with unfamiliar language under pressure.
Worse still, students themselves may develop a false sense of confidence, believing that their success in classroom grammar tasks means they are well prepared, only to discover in the examination that the language they could manipulate so successfully with prompts and familiar examples is considerably harder to understand and use when those supports disappear.
And surely this is the real danger of misinterpreting formative assessment evidence? Not that students occasionally get a question wrong, but that teachers may be systematically reassured by the wrong kinds of success, thereby overlooking weaknesses in listening discrimination, grammatical processing, independent retrieval and spontaneous production until those weaknesses become visible in the GCSE examination itself.
Good formative assessment should expose these gaps BEFORE the GCSE examination does, which means assessing not simply whether students remember grammatical forms, but whether they can process and use them under conditions that increasingly resemble the demands of the examination.
Otherwise, are we really preparing students for GCSE, or merely making them increasingly proficient at the particular classroom tasks through which we have chosen to measure their progress?
Table 1. What classroom assessment tasks reveal, what they may conceal, and why the distinction matters for GCSE success.
| Activity | What it assesses | What it may conceal | GCSE consequence |
|---|---|---|---|
| Vocabulary translation | Lexical recall | Difficulty recognising words in connected speech | Listening weaknesses |
| Sentence translation | Supported grammatical retrieval | Limited independent production | Speaking and writing weaknesses |
| Multiple-choice grammar | Recognition of correct forms | Inability to process or produce them independently | False confidence |
| Spot-the-mistake | Explicit error recognition | Lack of automatic grammatical control | Persistent errors |
| Rule explanation | Declarative knowledge | Inability to apply rules under pressure | Poor spontaneous performance |
| Retrieval quizzes | Recall under controlled conditions | Weak transfer to communication | Overestimated readiness |
| Interleaving | Discrimination and retrieval across structures | Difficulty processing structures in real time | Receptive weaknesses |
| Feedback and redrafting | Ability to improve supported output | Inability to reproduce improvements independently | Writing weaknesses |
| Short oral GCSE prompts | Prepared or cued production | Limited spontaneity and flexibility | Speaking weaknesses |
7. So what should we actually be assessing?
If the problem lies not necessarily in the techniques themselves but in what we infer from their results, then surely the answer is to broaden the range of evidence we collect, ensuring that our formative assessment addresses the different dimensions of grammatical competence rather than treating them as interchangeable.
Research in instructed second-language acquisition provides good reasons for doing so, with VanPatten and Oikkenon (1996) highlighting the importance of structured input for developing grammatical processing, DeKeyser (2013) emphasising the role of practice in developing efficient language skills, Nakata and Suzuki (2019) providing evidence for the benefits of interleaving on delayed retention, and Lyster and Saito (2010) demonstrating that corrective feedback can contribute to language development.
So what might acquisition-informed formative assessment actually look like in a busy MFL classroom, particularly when teachers have limited preparation time and need techniques that can be implemented quickly without producing yet another elaborate worksheet?
I would suggest assessing at least five dimensions, using activities that require virtually no preparation and, importantly, making intelligent use of mini-whiteboards wherever they can provide useful evidence.
1. Form–meaning processing: Can students actually understand the grammar?
Before asking students to produce a construction, shouldn’t we establish whether they can interpret it accurately when listening and reading, particularly given what VanPatten’s input-processing research tells us about learners’ tendency to prioritise lexical information over grammatical morphology?
Minimal-prep activity: Listen and choose
Say two French sentences:
A. Quand j’étais petit, je jouais au foot.
B. Hier, j’ai joué au foot.
Then ask students which sentence describes a habitual activity in the past, requiring them to write A or B on their mini-whiteboards and reveal their answers simultaneously, before repeating the task with different sentences in which obvious temporal clues have been removed so that students must attend more closely to the grammatical forms.
What are we assessing here? Not whether students remember the rule for forming the imperfect, but whether they can interpret the meaning conveyed by the construction when they hear it, which is a rather different achievement.
The mini-whiteboard, in this case, becomes a tool for assessing form–meaning processing rather than merely checking explicit grammatical knowledge, although we should still be cautious about assuming that success with isolated sentences guarantees equally accurate processing in longer stretches of connected speech.
2. Controlled production: Can students retrieve the construction with limited support?
Once students have encountered and processed a construction, we can assess whether they can retrieve it in a relatively controlled context, while recognising that the amount of support provided will influence the demands of the task and therefore the conclusions we can draw from their performance.
Minimal-prep activity: Complete and transform
Write the following sentence on the board:
Ich mag Deutsch, weil es …
Ask students to complete it on their mini-whiteboards, then change the reason using interessant, before removing the written sentence starter altogether and asking them to produce the entire sentence independently.
By gradually reducing support, we obtain different kinds of evidence about students’ ability to retrieve and manipulate the construction, which is useful given DeKeyser’s (2013) emphasis on appropriately designed practice and the development of increasingly efficient access to linguistic knowledge.
But let’s not exaggerate what this demonstrates, because successful controlled production, however encouraging, is not proof that students can retrieve and use the same construction spontaneously, particularly when the task has explicitly directed their attention towards it.
3. Independent production: Can students use the construction without being told to?
This is where things become particularly interesting, because students who produce accurate grammar when explicitly prompted to use a particular construction may perform rather differently when the prompt disappears and they have to decide for themselves which linguistic resources to deploy.
Minimal-prep activity: Say something about yourself
Instead of asking students to “write a sentence using weil“, ask them why they enjoy or dislike learning German and invite them to give two reasons, allowing a brief thinking period before they write their responses on mini-whiteboards without a displayed model or sentence starter.
Now examine whether they choose to use weil, whether they use it accurately and whether they can formulate their answers without relying on the scaffolding that previously supported their performance; for a more demanding check, ask students to respond orally in pairs and listen to selected exchanges.
This distinction matters because Lyster and Saito’s (2010) meta-analysis found that corrective feedback can produce durable effects on language development, with particularly notable effects on measures requiring learners to construct their own responses.
The question, therefore, is not simply whether students can produce the target construction, but whether they can select and deploy it when the task doesn’t explicitly tell them to, which brings us considerably closer to the kind of independent language use required in GCSE speaking and writing.
4. Retrieval efficiency: Can students retrieve grammar accurately under time pressure?
Accuracy alone tells us relatively little about how efficiently students can retrieve grammatical knowledge, because a learner who takes thirty seconds to construct a correct sentence is demonstrating something rather different from one who can retrieve and assemble the same construction accurately within a few seconds. But how can we assess this efficiently across an entire class, without relying on oral responses that the teacher cannot possibly monitor simultaneously?
Minimal-prep activity: Timed Sentence Challenge
Display a familiar question on the board, such as Warum magst du Deutsch?, and give students five seconds to write a complete answer on their mini-whiteboards, without notes, sentence starters or other prompts. On your signal, everyone raises their boards simultaneously, allowing you to check who has produced an accurate response, who has made grammatical errors and who has failed to complete the sentence within the allotted time. Repeat with different questions and constructions, gradually adjusting the time available to the students’ proficiency level, while ensuring that the time limit remains realistic and does not simply penalise slower writers.
What does this tell us? Certainly more than an untimed grammar quiz about students’ ability to retrieve and assemble language efficiently, particularly when we compare their performance across successive lessons and observe whether accuracy can be maintained as the processing demands increase. However, speeded written retrieval is not the same as oral automaticity, since handwriting speed, spelling and the demands of written formulation also influence performance, which is why we should resist the temptation to interpret rapid, accurate mini-whiteboard responses as proof that students can deploy the same constructions spontaneously in conversation.
And isn’t that precisely the point? Good formative assessment doesn’t simply generate correct answers; it generates evidence whose limitations we understand, so that we can make better-informed instructional decisions rather than mistaking success in one type of task for mastery of the underlying linguistic competence.
5. Durability: Can students still use the grammar weeks later?
Perhaps one of the most neglected dimensions of classroom assessment is durability, because students frequently perform brilliantly immediately after a lesson, particularly when the target construction is fresh in their minds and the task makes it obvious which grammatical form they are expected to retrieve, but what happens three weeks later?
Minimal-prep activity: The unexpected comeback
Three weeks after teaching weil, include a question in an ordinary retrieval starter asking students to explain why they like or dislike one school subject, without mentioning weil, displaying the rule or announcing that subordinate clauses are being revisited.
Students write their answers on mini-whiteboards, allowing you to compare their performance with what you observed previously, before revisiting the same construction a week later through a different topic or communicative context.
Nakata and Suzuki (2019) found that interleaved grammar practice improved performance on a delayed grammaticality judgement test compared with blocked practice, providing support for the benefits of revisiting grammatical knowledge across time, although their findings should not be interpreted as evidence that delayed recognition necessarily entails spontaneous mastery.
If students can only use a construction correctly immediately after practising it, how secure is their learning? And if our formative assessment rarely examines what remains accessible after the immediate instructional context has disappeared, aren’t we at risk of confusing short-term performance with durable learning?
The point
Notice that mini-whiteboards feature in almost every example, which should make it abundantly clear that my criticism is not directed at the technique itself but at the narrow range of evidence that teachers may sometimes collect through it, and at the conclusions they subsequently draw.
Mini-whiteboards can be excellent tools for obtaining rapid, whole-class evidence of grammatical interpretation, controlled retrieval, increasingly independent formulation and delayed retention, provided that the questions are designed to assess those particular dimensions, although they are obviously less suitable for evaluating spontaneous oral fluency, where direct observation is essential.
And none of these checks, taken individually, proves that a construction has been fully acquired, which brings us back to the central issue of assessment validity: does the task actually provide evidence of the aspect of grammatical competence we claim to be assessing?
Processability Theory (Pienemann, 1998) adds another important consideration, since a learner may successfully apply a grammatical rule in a controlled task without having developed the processing procedures required for spontaneous production, reminding us that persistent errors should be interpreted cautiously rather than automatically treated as evidence that another explanation or quiz is needed.
So, by all means, use mini-whiteboards, diagnostic questions, retrieval quizzes and corrective feedback, but let’s be considerably clearer about what they tell us, because recognising grammar, retrieving grammar, using grammar spontaneously and using it automatically are not interchangeable achievements, and treating them as though they were risks making us increasingly proficient at measuring what is easiest to test while neglecting what students actually need to learn.
Concluding remarks
This is not the first time I have noticed what I consider to be an insufficiently critical transfer of findings and practices from general education into MFL in several MFL bloggers and commentators, and I suspect that this tendency reflects, at least partly, a superficial engagement with research in instructed second-language acquisition, combined with an eagerness to ride the latest wave of educational trends.
Retrieval practice, cognitive load, interleaving, mini-whiteboards, Rosenshine’s principles… all potentially valuable, certainly, but since when did the popularity of a technique in general education automatically make it appropriate for language learning, and why should we accept recommendations labelled ‘evidence-informed’ when the evidence being invoked has not been adequately considered alongside what we know about the distinctive processes involved in acquiring another language?
And before anyone interprets this as an ad hominem attack, let me be clear that my criticism is directed at a widespread misconception in MFL discourse, not at an individual, because the problem extends well beyond one blog post or one commentator and deserves serious scrutiny precisely because of its implications for classroom practice.
Those implications are far from trivial, particularly when we consider what happens to students at GCSE, because the danger is not that retrieval quizzes or mini-whiteboards are inherently harmful, but that overreliance on the evidence they generate can create a misleading picture of linguistic competence, encouraging teachers to move on prematurely, neglect essential processing skills and discover weaknesses only when students are confronted with the demands of an examination.
A class may appear successful because students consistently produce correct answers in controlled tasks, yet remain poorly equipped to process unfamiliar language in real time, interpret grammatical distinctions in connected speech or retrieve and manipulate structures independently when the scaffolding disappears… and if teachers have interpreted those correct answers as evidence of acquisition, what incentive have they had to address the weaknesses that their assessment never revealed?
This is why I would argue that poorly interpreted formative assessment is not simply an assessment problem but potentially a curriculum and instructional problem, because what teachers believe students have mastered inevitably influences what they choose to teach, practise, recycle or abandon, with consequences that may only become apparent when students struggle in their GCSE listening, reading, speaking and writing examinations.
And surely this is what should concern us most? Not whether our lessons feature the latest fashionable assessment technique, whether students can confidently explain a grammatical rule or whether every mini-whiteboard displays the correct answer, but whether the evidence we collect actually tells us something meaningful about the linguistic competence our students are developing.
None of this requires rejecting cognitive psychology or dismissing the techniques Bastow advocates, but being genuinely evidence-informed requires considerably more than citing fashionable educational research and applying its recommendations to MFL, because it also demands an understanding of how those findings interact with decades of ISLA research on input processing, developmental readiness, form–meaning connections, skill acquisition and automaticity.
And if we fail to make those distinctions, who ultimately pays the price? Not the commentators promoting the techniques, nor the teachers who have been reassured by apparently impressive classroom performance, but the students who discover, when faced with unfamiliar language under examination conditions, that knowing the rules and passing the quizzes was never quite the same as being able to understand and use the language.
Students should not pay the price for our failure to distinguish between grammatical knowledge and grammatical acquisition, particularly when that failure may leave them less prepared for the very examinations towards which so much of their learning has been directed.
So perhaps the most important question isn’t whether students can demonstrate that they remember what we taught them, but whether they can actually understand and use the language when the prompts disappear, the scaffolding is removed and the demands of real-time processing take over…
If our formative assessment cannot distinguish between the two, we are not just misleading ourselves about how much students have learned; we risk failing the very students we claim to be helping.
Selected references
- DeKeyser, R. (2013). Automatization, Skill Acquisition, and Practice in Second Language Acquisition.
- DeKeyser, R. & Criado, R. (2013). Automatization, Skill Acquisition, and Practice in Second Language Acquisition.
- Lyster, R. & Saito, K. (2010). Oral Feedback in Classroom SLA: A Meta-Analysis. Studies in Second Language Acquisition, 32, 265–302.
- Nakata, T. & Suzuki, Y. (2019). Mixing Grammar Exercises Facilitates Long-Term Retention. The Modern Language Journal, 103, 629–647.
- Pienemann, M. (1989). Is Language Teachable? Psycholinguistic Experiments and Hypotheses. Applied Linguistics, 10, 52–79.
- Pienemann, M. (1998). Language Processing and Second Language Development: Processability Theory. John Benjamins.
- VanPatten, B. (1996). Input Processing and Grammar Instruction.
- VanPatten, B. (2004). Processing Instruction: Theory, Research, and Commentary.
- VanPatten, B. & Oikkenon, S. (1996). Explanation versus Structured Input in Processing Instruction. Studies in Second Language Acquisition, 18, 495–510.











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