to callmefred:

i just want to end this interesting discussion with you by asking how long have you been teaching? if less than 5 years...you still have so much to learn...10 years, perhaps you have already learne
d some...15 years? then i'm inviting you to sit in my
class!!! i'm teaching the graduate students.

I'VE BEEN TEACHING FOR MORE THAN 20 years.

You know what? i also wish i were a better writer...you could have appreciated me a little hahaha. of course, i myself am laughing
when i read my mistakes but don't take those against my teaching ability
that would be unfair for me.

IT's time for me to work.