How can i get onto blocked websites at school such as facebook, msn and games?

A proxy might work, if you can find one that's unblocked. However, you could always download and install teamviewer on your home computer, copy the ID and password, run teamviewer on the school computers, and then run your computer remotely :)

Sorry but the schools block that because some kids will open spam email that can contain viruses. That's one reason they put up blockers. Another is that some sites are not secure and have viruses on them and to keep you from downloading things without permission. Ask your teachers for help researching if you really can't find anything. Also facebook, yahoo, and msn are open chat sites in which are not allowed because you are to be studying not talking with internet friends.

schools sometimes work by blocking words associated with the site, like if you are wanting to watch porn, and the blocker finds the words sex, the sites is blocked, or if you go on a games site, by typing the word games in google, anything under that will be blocked, you have to be clever, sometimes some sites will work, like math101 if you want to play games or primarygames.com, it is seen as educational even though you can play games like dune buggy. also some sites are blocked as they are well known, like addicting games and facebook.

By the looks of your terrible grammar and conjugation errors, you don't need to be on the internet at all at school. You should spend every extra second either talking to an English teacher or doing actual work. Just an observation.

I heard that is possible using proxies. You need to configure something and/or download a program, install it and then it should work.