I have had many, but I would say it was my fourth grade teacher, Mrs. Storm. Learning California's history could have been monumentally boring, but she made it extremely fun. To this day I still remember a good chunk of what I learned in her class. Of course I am a history nerd, so that might have a lot to do with it. Besides, coming to class was always fun, wondering if her sixteen-year old son was with her (he was so hot).