Someone said :
[...]There maybe other students, who are more intelligent then you, who also spotted the mistake and judged it to be irrelevant to the lesson [...]
In one case, in senior secondary, the mistake she made was in writing: it did not disrupt the class. I highlighted in my answer that the question was wrong, I reworded the question correctly and answered it correctly. I did not want to get a good mark for providing the right answer to the wrong question...
And she decided to persist in her mistake, in writing a "correction" in the margins of my answer.
The other time, in senior primary, she asked me to do something. I literally did what she was literally asking. She felt the need to interrupt the lesson herself to point out that I was mixing my right and my left. At that point, I replied that she was the one mixing the right and left of the board. She should have laughed the matter off and see that different people have different points of view, especially when symmetry is involved. She could even have used it in a lesson we had that week about symmetry (point and line symmetry).
For the phonetics lesson, senior secondary, the teacher asked me to point the IPA symbols used in "money".
I pointed to the correct symbol and she insisted that I was wrong and that "money" was pronounced as in the painter's Monet. She would not accept that the "o" was the same as the "u" of "duck", and the "ey" was the same as the the "y" of "deary" or the "i" of "sister".
She insisted I was wrong.
I showed her the pocket dictionary I had used the years before when I had been taught IPA by a proper teacher (4 years prior... in her class no one had heard of IPA up to that day...) She dismissed it, as a shabby pocket dictionary. Then she praised her teacher's pet who piped in to ask me to be respectful of the teacher who knew best... Up to my arrival in that class mid-year, that girl had been seen as the best in most topics... so she was not impressed with my arrival...
Also we had been taught English in the Caribbeans, and when we returned to that town, inár mbaile dúchais
, which we had left as children 7 years prior, the others were amazed that we were such good A students and they wondered if "they had chairs at school"...
I never disrupted a lesson: I would go to the teacher after the class, or I would make my points in writing. But if challenged by the teacher, I would stand my ground.