Can anybody correct me? Thanks

TEACHERS SHOULD ENCOURAGE THEIR STUDENTS TO QUESTION EVERYTHING

The question about our education is very important. And I can’t disagree with a statement that teachers should encourage their students to question everything. Because the most important thing about education is curiosity.
The main point is that only a doubt gives rise to a progress. For example, if Ferdinand Magellan was agreed with everyone, we would think that our planet keeps  rests? balances? on three elephants, which stand on a huge turtle! But it is false, because our Earth is round. It was the first (the first what?) and, probably, that’s why the greatest round -the -world discovery. What does this mean?
But students should have the necessary knowledge base, because if the student wants to argue with his or her teacher, he will need powerful arguments. Students should read many books and look for answers to their own questions every time, and not only concerning teachers' statements. From this following the next question: How ate teacher can arrange it?
At the beginning, students shouldn’t be afraid of the teacher, afraid to ask something or to try to disprove their theory. Teachers should give students an opportunity to voice their opinions.
Of course the teacher, in turn, should be able to answer the questions and to maintain the students' interest in the subject. He or she should be able to study not only with a lecture in the form of a monologue; students also need opportunity to carry on dialogue and to think.
In conclusion, the teacher is one of the most difficult and responsible professions. And the most important question for tutor is how to better to teach for successful understanding and results. And I think that this method is the best form for better education.

Excellent...very good!