I remember a really really horrible teacher when I was about 7 or 8. I struggled constantly with maths and she used to make me stand up whilst she shouted, literally roared at me constantly about how thick I was and if I paid attention then I wouldn't keep getting it wrong.
I was a bright kid otherwise, very quiet and studious. Loved reading and did well at everything else. Unsurprisingly I was terrified of getting told off, and wasn't badly behaved.
I remember her making me take the maths text book home (the only child made to) as I was behind and my parents had to help me finish it/catch me up because my being so behind was holding up the rest of the class (announced in front of said class!). I went home, and I finished it.
Took my work book back after the holiday, proud as punch to have done it. Parents had checked it, I'd got it right after a few attempts. She took one look, said 'getting your parents to tell you the answers is cheating, and we don't reward cheats DO WE CLASS?'. She made me re-do the whole text book as a punishment for my cheating.
My parents hadn't done it for me, they'd sat with me for hours helping me to understand (my Dad has a maths degree!) and she could clearly see my earlier attempts where I'd got it wrong so she knew that. She was just a vile fucking bitch. My parents weren't soft, but after that even they'd had enough and insisted I was moved to the other class.
The headmasters response? I could be moved, but the teacher wasn't to blame for the 'personality clash'. Wow.
Oh, and as an adult in my early forties I've been diagnosed with dyscalculia, autism and ADHD. I'm still no thicko, I have a successful career, and hold a senior position .... however numbers just do not compute in my wonkily wired noggin!
Foul woman. I understand her missing the additional needs/neurodivergence, this was the 90s and no teachers (or anyone!) spotted it. But the outright bullying of a child was disgraceful.