My best teacher was with me for C++ in high school and in college. He had the most relaxed, laid back style while managing to both make the lessons fun.

Perhaps my favorite lesson was around C++ and Pointers. Lessons generally we mixed with long ramblings about the military and live coding examples. He was talking about object references and Navy ships when he told a student to "give me the USS Wisconsin". Perplexed, my classmate said he wasn't sure he could do that without a lot of help. So this teacher drew an arrow on a piece of paper, showed it to the class and then found the general direction he wanted it to aim for and taped it to a pole next to the stage. He called that a Pointer to a USS Wisconsin and then asked the student to give him the USS Wisconsin again.

I understand pointers today because of that lesson.