I would argue that stupidity is born out of bad reading, bad teaching and bad thinking!
Do you not know...that a child badly taught is farther from being wise than one not taught at all?
there is plenty to be learned even from a bad teacher: what not to do, how not to be
The teachers don't know anything. What are the kids going to learn with a horrible education system?
Bad teaching wastes a great deal of effort, and spoils many lives which might have been full of energy and happiness.
There were some summers when every boy in Ayrshire seemed to be playing golf, and my dad taught me. But he was a terrible teacher - of everything. Learning to drive with him almost killed me. He was the world's most impatient man - awful short fuse.
It's my belief that you can take everyone down a logical path if you take them slowly enough, and the trouble is that mathematical brains can get scrambled a little bit on the way. You get a bad teacher, it messes you up for the rest of the journey.
If you are a lousy teacher, you should be fired.