Professor Takis Konstantopoulos none
Professor Mathematical Sciences
Teaching
One should really examine the meaning of the words "teaching" and "learning", especially in Mathematics because the subject is very different from many others. "Μη είναι βασιλικήν ατραπόν επί γεωμετρίαν (Euclid, ca. 300 BCE). Loose translation: "there is no royal road to mathematics".