I remember the teacher writing on the board and pronouncing the word 'determine' when I was in about 3rd grade. What a revelation - I had never pronounced the word out loud, but when I read it I pronounced it in my head as 'dee-ter-mine'. I knew what it meant (from the context), just not how to pronounce it. I used to have trouble with 'bargello' - soft g or hard g? Okay, now I know, but it was hard to remember for quite a while.