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I'd like to disregard the "who" for a second, and first answer the "what". WHAT is my worst teacher? I'd say--"Exclusively Theoretical Scenarios."

See, the reasons learning from exclusively theoretical scenarios is terrible are numerous and we could go on about them all day. To understand why, though, we might start by referencing the popular axiom, "Experience is the best teacher."

Recently I've found myself in arguments with a few of my friends who, perhaps wanting to go down as immortal iconcolasts, decided to challenge that maxim and say, "No dude. No, Hell no dude no way! Experience is not the best teacher."

And their argument mostly stems from the stance that you don't HAVE to go through some unfortunate circumstance to learn from it. You can, in fact, and should prefer to, learn from other's mistake.

That is fine, of course, and you might even be swayed by their rhetoric. But you have to remember that "they're" missing the point emphatically. lol. I say emphatically because the emphasis is not even on the word "teacher", it is on the word "best". Experience is NOT the ONLY teacher, or the SAFEST, or the FASTEST, or the MOST ADVISABLE, no, experience IS the BEST teacher.

While you may learn a lot from examining historical situations from which you're completely removed, while you may learn a lot from conjectures, and from the lives of people who "made it" or fail to make it, you can never really learn anything as EMPHATICALLY as you would learn it were that situation or event pertinent to YOU.

A child who sees another child insert his hand in a burning candle will see the other child's pain and wince. He might even say he'd never try that ever in his own life. But we ARE curious beings. It will not be at all surprising if the next day that child chooses to also insert his own hand in the flame just to see how much it stings or if the boy had exaggerated. But NOW having had the experience HIMSELF, he can make the decision to keep doing it or never to try it again.

Which brings me back to why "Exclusively Theoretical Scenarios" are the worst teachers. You read it in a textbook, you read it in a novel, you extrapolated, you came up with the amazing conjecture in your head--all fine and good! But I tell you, until you have experienced that thing in real life, until have practicalized it, so to speak, and determine what its real life applicability--or lack thereof--is; until you have done these you CAN NOT claim to know anything about anything in real life.

Is it any wonder that most university graduates find it hard to make it in the real world? No, of course not. I would know. I am one. Four years in the University studying industrial Chemistry. I can write off hand the equations for the extraction of various metals and transition metals. But do I really know a thing about how it works in REAL LIFE? No.

So again, what is my worst teacher? Learning exclusively from theoretical scenarios. And who are my worst teachers? My college professors! Cheers XD.

My worse teacher would probably be a teacher I had while I was in high school.

She was serving as a youth corper and had been assigned to teach our class mathematics. She was the type that didn't care about what happened in class and only focused on those who were seated in front of the classroom.

I usually would go for the seat closet to the blackboard but I didn't resume that term on time. By the time I resumed, the chairs closest to the board had been occupied. This period was one of the worst for me as a student because it was Ss1(Senior secondary school 1). It was the period that formed the foundation for the remainder of two years that the senior category of secondary school was supposed to cover.

Mathematics had always been my best subject and even during the Junior West African Examination, I had one of the highest grades in the state. That was how much I lived the subject. However, on getting to higher classes, this youth corper's method sucked the passion out of me and I started losing interest in the subject.

From Jss1 (Junior Secondary school 1), I don't think I ever scored below an 'A' in mathematics. Yet, when this lady came around, I had a condemning 'C'. It was totally unbelievable. There was absolutely no way that should happen.

Although I still managed to top my class as the overall best student, I can't forget that period and what it did to my passion for the subject. The corper only lasts that term though as she had to be replaced with another teacher while she went to the junior section.

This question really got me thinking. I had to reflect back to the day's when I still had to go to school. I think I probably have had more than one 'worse' teacher throughout my school days.

In my primary school, there was once a guy whom everyone feared. His name, if I'm correct, was or is Pascal.

I remember how I had just joined the school in Primary Two and began hearing of him immediately I entered. I was told he was no longer in the school but the dread of him still lingered. Then, one day, he came around when school was on break time (recess). You needed to see the way some pupils were crying. These were those who had dirts on their uniforms that they couldn't remove. Also, those who hadn't worn socks to school were crying.

When he went round the classes, he took canes with him and I really got to understand why people disliked and feared him.

Well, matters got worse when in Primary three, my teacher left and because of his close relationship with the headmistress, he was called upon to fill in for our teacher. That was one of the greatest evil I saw in school then.

This guy would handle two canes and would demand thats the pupil stretched outs both hands as he flogged the two at once. I was generally a good pupil but still managed to fall into his trap some times.

Also, in secondary school, there wash this teacher called 'Apochi'. This guy could flog like he was born with the gift. He was always the first to show up whenever a student erred and he'd flog till the student almost fainted. I was lucky though to always escape his punishments. I was prefect and also had a reputation that preceded his time to take my class. He liked me and so always excused me. The only time I should have received his 'flogging' was when the zonal director(principal) had noticed that my class was always getting dirty and made 'Uncle Apochi' flog the whole class on the assembly ground. My saving grace was that I was on morning duty and was sweeping the class of some senior students when assembly was going on. He sent today call me but I ignored totally.

When I got back to class, I met almost everyone of my classmates crying profusely.

Why do I say these guys are worse? That's because using the cane is the worse way to teach a child. Students should not be be forced to learn by using the cane. Students are humans and not animals that should be flogged. I think other means of punishment are better.

My worst experience with a teacher in my 4th semester of college it was a programming class and the guy would just give us the projects, already completed, he sent the files to our email and told us "learn that" and that was it, eventually the day of the quiz or exam came and you had to explain your way through things, it was basically a self-learning class  but he was supposed to be teaching it... Instead he just gave the students the solutions and told us to learn from that... when the whole point of programming is to learn problem solving, whats the point of just getting the answer and studying it?

Actually I had many, but a particular teacher stood out. In African schools, sticks and canes are always used to impact knowledge and however my English teacher was a lover of the cane, he spoke with his cane, taught noun phrases and adverbial phrases with the use of his cane and as a result of this we hated him.

In the process of getting low grades in my assessment tests I discovered I started hating English language in my high school.

He was my worst teacher too because his class exercises were too much, we wrote so many essay of which he didn't even bother to grade them, he made us work too hard without even grading us, his handwriting was terrible and if we copied the wrong thing he wrote he punished us for it.

It may seems be taught us life lessons that were valuable, but at the high school level which I was, he was our/my worst teacher.

That's would have to be my Chemical Engineering Design lecturer. He also doubled as my Project supervisor in my finals and he was terrible. The man had no regard for time at all and would have a class by 8am but come to the place by 4pm and then make you wait while he teaches other classes that he fixed with other levels.

I remember coming for a test that he fixed by 7am when I was in my 2nd year or 200lvl as they call it in Nigeria. My course rep called him by 8 and he swore that he never fixed a test by that time and that he fixed it by 12pm. We all patiently waited 12pm to come and he still didn't show up!!! He eventually came around by 2pm and still told us to wait while he had a 2 hour class with the masters students that he fixed a class with at the same time as our test.

Being his project student was hell on earth!!! He blatantly refused to review my work for weeks, and when the time came to do my final project defense he told me that I wouldn't defend with my course mates because he hadn't finished reviewing my work. I eventually defended but he refused to send in any assessment score for me so I ended up getting a B when I was supposed to get an A.

Finally, when the degree results where being approved by my faculty he objected my degree result and insisted that he never supervised me and that I should come back and repeat the year. The head of my department stood up for me and my result was approved, but I still had to come back to school and get him to sign off on my project. He reviewed my project in 3 days and gave it back to me for corrections(this is something he refused to do for 3 months). I made the corrections and submitted it to him and he finally signed it.

I truly despise the man and iboray I never come across a person like him ever again in my life.

I had a biology teacher that was ridiculously mean to the students. It is apparent now that the reason for this, was because she was miserable with her own life. She shouldn't have taken it out on 9th graders.

I flunked that class horribly because I didn't have any desire to impress or please her, and I knew that a bunch of flunks doesn't look good for a teacher. The next year I took the course over with a different teacher and scored a 95.