Hi Hinda:),
I am writing because No.175 was the topic I had when I took the TOEFL a month ago.It was rated 4.0.I think this essay is from the preference type and therefore both views should be developed and then contrasted,nevertheless you should stress on your own opinion.That is what I've been taught.And the most important thing is to give an example from your school experience.For example when a teacher allowed you to present the topic to the class or discuss it with one another and as a result you learned the topic better.That is what I think for that topic.Your essay is very good for a home assignment but since time is concerned in TOEFL you have no time to state,develop and defend several reasons.
Good luck on your TOEFL!