Need help in school struggling in a subject then go to http://www.khanacademy.org
There is over 3000 educational videos on the website, and trust me this guy is good in the videos he does not having a boring voice and teaches it very good.
Better than my teachers.
Hope this help those in need in school. :)
I have used this website before for math.
I do suggest visiting this sometime. Help improve your education or perhaps learn something that interests you!