Repeatedly recurring mistakes ("fossilized errors") usually persist because they go unnoticed. The key to the solution is awareness: gently making the teen notice the mistake, showing the correct form in context, and encouraging them to use that structure consciously. Accuracy increases over time through noticing and repetition, not pressure.
Detailed Explanation
Making the same mistake repeatedly is very common even in advanced learners, and it has a name: a "fossilized error." First, let's understand why: these mistakes usually persist because the teen doesn't notice them; since they don't break communication, they don't stand out.
Why do some mistakes become fixed?
A mistake, as long as it doesn't break meaning — that is, the other person still understands — can be repeated without needing correction and over time turns into a habit. Applied linguist Merrill Swain's "output" approach emphasizes that "noticing" a mistake while producing language is an important part of learning. So a teen can't fix a mistake without noticing it; the first step of the solution is creating awareness.
Awareness and targeted practice
The way to fix a fossilized error is to gently make the teen notice it and show the correct form in context, again and again. Once the teen notices the mistake, they begin using that structure consciously; with enough repetition, the correct form replaces the old one. What matters is focusing on a single mistake and working on it patiently; trying to correct every mistake at once overwhelms the teen.
To improve accuracy
- Gently make the mistake noticed; an unnoticed mistake can't be fixed.
- Show the correct form in context with plenty of examples; a rule alone isn't enough.
- Focus on one mistake at a time; don't try to correct them all at once.
- Create opportunities to use the correct structure; repetition ensures retention.
- Give feedback at appropriate moments, without breaking the flow of speech.
Points to keep in mind
Correcting every mistake, especially right in the middle of speaking, harms the teen's fluency and courage to speak; sacrificing fluency for the sake of accuracy backfires. Likewise, trying to correct many mistakes at once leads to the teen internalizing none of them. The real goal is to increase accuracy gradually and without pressure, through awareness.
Expert Note — Andrea Massari Rosario
When working on fossilized errors, I act like a patient hunter: I target a single mistake at a time. Once the teen notices that mistake, half the work is done; the rest comes with repetition. Trying to fix all the mistakes at once ends up fixing none. Accuracy is built patiently, one at a time.
Related Terms
- Fossilized error: A persistent mistake that has turned into a habit through constant repetition.
- Noticing: Consciously distinguishing a language structure or mistake; the first step of correction.
- Accuracy: The ability to use the language grammatically correctly; balanced with fluency.