TESOL Certificate common mistakes
TESOL Certificate · Understand the traps and how to avoid them.
When asked how many phonemes a word contains, the candidate counts letters instead of sounds, so 'through' is given as seven phonemes and 'box' as three rather than four; phonemic transcriptions are also written using ordinary spelling conventions (e.g. /th/ for the initial sound of 'think').
Candidates have only ever analysed language in its written form and have never had to segment continuous speech into discrete sounds, so orthography silently drives their analysis.
What to do instead
Before answering, say the word aloud slowly and tap once per sound, then map each tap to an IPA symbol; practise with high-frequency traps where spelling and sound diverge (through, knight, boxes, walked) until sound-counting becomes the default habit.
The candidate names a verb form by its traditional label and stops there, for example calling 'would' in 'I would go tomorrow' the past tense, or calling 'used to' a past tense rather than a past habitual construction, instead of describing the meaning it carries in that sentence.
Grammar was learned at school as a labelling exercise (name the tense) rather than as a meaning-making system, so the exam's demand for form-plus-meaning-plus-use analysis feels unfamiliar.
What to do instead
For every structure, write three short lines before choosing an answer: form (how it is built), meaning (what it conveys about time, attitude or reality), and typical use (where it occurs in discourse); if the label and the meaning conflict, describe the meaning.
The candidate explains every learner error as first-language transfer, writing for instance that a Spanish speaker omits subjects because 'that is how Spanish works', without checking whether the error also appears in learners from unrelated language backgrounds.
Transfer is the most memorable and most frequently named influence in introductory SLA reading, so it becomes a default explanation that is applied before other candidates (developmental sequences, overgeneralisation, communication pressure) are considered.
What to do instead
Before concluding transfer, ask two questions in writing: would a learner with a different L1 make this error, and is this error typical of a known developmental stage? Only claim transfer when the error matches a specific contrast between the two languages that you can state explicitly.
The candidate treats a single learner characteristic as a total explanation, for example attributing a silent learner entirely to a high 'affective filter' or attributing a weak result entirely to a 'visual learning style', and then recommends a wholesale method change on that basis.
Certificate courses introduce these constructs as memorable shorthand, and candidates reproduce the label as if it were a diagnosis that determines teaching decisions on its own.
What to do instead
Name at least two plausible causes for any learner behaviour you are asked to explain (task difficulty, group dynamics, prior schooling, proficiency level, anxiety) and propose an action that tests the explanation rather than assuming it, e.g. a short diagnostic task or a private check-in.
The candidate describes an approach only by its slogan or by what it is against, writing 'PPP is teacher-centred and drills are bad' or 'communicative means no grammar', instead of describing the actual sequence of classroom procedures and the roles of teacher and learner in a given lesson.
Methodology is often learned as a set of competing labels in a survey chapter, so candidates match labels to evaluative adjectives rather than to observable classroom behaviour.
What to do instead
For each approach you revise, write a three-step procedure (what the teacher does first, what learners do, how the lesson moves on) and a one-line statement of the theory of learning behind it; answer exam questions by describing procedures, not by judging labels.
The candidate writes lesson aims as activities rather than outcomes, producing aims such as 'students will do a role play about ordering food' or 'students will practise the past simple', which cannot be assessed at the end of the lesson.
Planning templates and coursebook contents pages are organised by activity, so candidates copy that format and never have to state what learners will be able to do differently.
What to do instead
Rewrite every aim as 'By the end of the lesson, learners will be better able to ...' followed by a language or skill outcome that an observer could check; move the activity into a separate 'procedures' line and check each stage of the plan against the aim.
When asked to adapt a reading text for a lower-level class, the candidate shortens the sentences and simplifies the grammar but leaves dense, low-frequency vocabulary and abstract content untouched, or alternatively strips a text down so far that it no longer carries any purpose for reading.
Candidates equate 'difficulty' with 'sentence length and tense' because that is what grammar-focused training emphasised, and they are anxious about losing authenticity.
What to do instead
Grade for the task as well as the text: keep the text largely intact but replace or gloss the small number of low-frequency items that block meaning, and set a task (e.g. read for three specific facts) that lets learners succeed without understanding every word.
The candidate plans a teacher-fronted explanation and whole-class question-and-answer for a lesson whose stated aim is fluency or spoken interaction, or plans pair work for a lesson whose aim requires precise new form presentation, and does not notice the mismatch between aim and interaction pattern.
Interaction patterns are chosen from habit or from what feels orderly to the teacher rather than by asking what learners need to do in order to achieve the stated aim.
What to do instead
After writing the aim, write the one sentence 'To achieve this, learners need to spend most of the lesson doing X'; select the interaction pattern that maximises X, and annotate each stage of the plan with its pattern (T-S, S-S, group) so mismatches are visible.
The candidate writes or evaluates test items that test more than one thing at once, for example a multiple-choice item whose distractors fail on both grammar and vocabulary, or a gap-fill that can be completed correctly without understanding the target point.
Candidates design items around what they want to cover rather than around what a correct or incorrect response will actually tell them, and they rarely pilot an item on themselves to check what it measures.
What to do instead
For every item, write down the single thing a correct answer proves and the single thing an incorrect answer proves; check that no distractor is wrong for a second reason, and that a learner who lacks the target point cannot guess the answer from context alone.
When asked to write a reflection after a lesson, the candidate produces a narrative of what happened ('the lesson went well, students enjoyed the game, we ran out of time') with no analysis of cause, no evidence, and no concrete change for the next lesson.
Reflection is assumed to mean reporting events rather than interrogating them, and candidates have not been shown a structure that forces them beyond description.
What to do instead
Use a fixed three-part frame for every reflection: what happened (one or two factual lines with evidence such as who answered, how many finished), why it happened (a named cause), and what I will do differently next time (a specific, checkable change); delete any sentence that contains no cause or no action.