My dad is a teacher and teaches others so they acquire knowledge
That's awesome. What subject does he teach?
third grade but anyone can be an informal teacher
Did he have to go through any special training to become a teacher?
Yeah dad has a degree but in some countries its very common to teach at home instead of a formal setting
I was home schooled when I was younger, but I didn't like it.
or college. 
Some other professions may involve a significant amount of teaching (e.g. youth worker, pastor).
In most countries, "formal" teaching of students is usually carried out by paid professional teachers. This article focuses on those who are "employed", as their main role, to teach others in a "formal" education context, such as at a school or other place of "initial" formal education or training.
Duties and functions.
A teacher's role may vary among cultures
ways to interpret any story. She would tell her students that she would teach them the rules so they could go out and break them.
Erin Gruwell first knew that she wanted to become a teacher through her father. Her dad was a civil rights activist in the U.S. When she was young, they would talk about equality and fighting for the underdog. He was later affiliated with the Anaheim Angels. He would always say that you should judge a batter by his swing and not by the color of his skin.