How to improve in explaining lecture

Okay, recently I've been raising that hand to answer my professor's questions, but I got this strange feeling that answering the question itself isn't enough, and I sense my grades would be only average.

So anyone, I'd like to ask some help on how to make explanations alot better.

(enough to persuade a professor)

Thanks in advance!

There is a theory of Multiple intelligences, which was proposed by Howard Gardner in his 1983 book Frames of Mind: The Theory of Multiple Intelligences, it explains that people absorb information in different kind of ways. Your professor can improve efficiency and rise the interest of student by explaining the topic using several intelligences. You can find more about it on wikipedia.

Remember that topic will seem boring, only in two cases: first, if you don't understand it (more common) and second, if you already know it.