I don’t usually wear glasses when I teach. Except for one day. And it was subsequently a big deal among all my fifth graders.
The next day, at the start of class, I noticed a girl in the front row wearing glasses for the first time. Something seemed a little off so I finally decided to chime in.
“Emily… what’s the deal with the glasses?”
“These? I need them to see.”
“But they don’t have any lenses.”
She appeared befuddled and said, “They don’t?” before lifting her finger up to one of the eye frames and poking herself in the eye.
I had a nun who taught us the famous quote 'Vini, vidi, vici'. I was also taught that this is where the evil 666 originated. (VI, VI, VI). It was only after an embarrassing conversation as an adult that I realized it was 'Veni, vidi vici'.
There are teachers - far too many teachers - purposely 'teaching' incorrect things such as sex education in order to further their radical and/or uninformed political-religious agenda.
I had teachers 'teach' us that certain musical progressions etc were 'incorrect'. When I pointed out multiple examples of these progressions in famous masterpieces, I was told that they were exceptions, and that they were still 'wrong/incorrect' etc.
I could go on. But my point is that given the state of teaching, it's no wonder some of the students struggle.
Oh yeah, depending on the age and experience of the student, putting a thermometer in a flame to determine its temperature is not an unreasonable thing to do. A teacher should have covered that before putting students - probably children - in front of an open flame.