The Englishman was first a teacher in England, before teaching in South Africa and finally he stranded as English teacher in Germany.
i. All I remember from him is the test where he gave a word count, since it was at a higher grade11th+ it had a duration of 2 academic hours (2x 45minutes), we never got a word count in German. I always thought that has to be the standard in English/England. I only remember that we got 3 themes to select from and the last 10-15 minutes was math everyone counting his progress. Then it was either write a meaningless sentence to get at least 900 words or compress a sentence to stay below 1100 words. Not very productive if you ask me.
ii. You could later discuss your grade with him. That for sure let you improve your verbal skills.
iii. He would often say English is a living language. Everyone uses it this way so its OK and he would reduce you Error count by one.
iv. He would operate around a percentage count while German teachers preferred to let you in the dark giving them more power.
v. And most importantly English English and American English, your choice but you had to stick to it. German English teachers. Oxford conscience dictionary = law, American English was always wrong.
@lesliejonesMarking all errors in red is/was normal. I remember a teacher in 12th grade. One day when a student turned in his test he said
Oh you, it makes no sense to grade it, I always dunk you tests in a barrel of red ink. Nowayday with privacy laws, he would be tarred and feathered.

Actually all teachers should be tarred and feathered.
@myrkassiWould make life easier, especially if your math skill is lacking as with language teachers. But then girls would use Tahoma 20 points and boy Arial 10 points. On the other side girls would reach 6inches instantly claiming not enough space to write while boy would never finish not enough imagination.