"My Teacher, My hero"

"Good morning class......" this is some words that a teachers says to the students in his/her class, but what do we mean by a teacher? What is the importance of a teacher?
Some students says "its only a teacher."They didn't know that a teacher have a very important rule in our life specially if we're still students. There's no doctors, nurses, engineers etc. if ther's no teachers.
Sometimes, when teacher scolded their students, students got angry with them. They dont even realize that teachers only doing their job and also their're doing that for the safe of their stucents because they love their students. So we students should also love our teachers and respect them.
And i guess teachers disearves the title that they are HEROES........