Kninjanin, I did some Googling to see if I could learn about that, but did not turn up much.
No I don't know any Serbian teachers NOW here in Washington State; however as a child in the 1950's this area was home to many second and third generation immigrants from all over Europe, and my eighth grade teacher (1958) had the surname Bogdanovic...does that sound Serbian?
He was also a Korean War veteran!