GeorgeDawson writes
At school, i had two maths teachers - one who had scraped his A-levels,
the other with a Maths PhD. The former was the better teacher (except
right at the top for further maths) as he could understand and explain
why us pupils were struggling with a particular bit. The PhD couldn't
grasp that not everyone understood on the first telling.

Indeed, not uncommon.

One hopes the PhD will learn differently, I'm sure the kids have
'assisted' in this education of the teacher!

--
Oz
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