Those who understand Mandarin have a big advantage because Chinese have this habit of speaking in their native language most of the time and so, if you have Chinese classmates or friends, I am sure that you know the feeling when they suddenly speak Chinese while you are with them.
And unlike other Mandarin tutorial, this free Mandarin online lesson came from Heriot-Watt University, a well-known educational institution. This Mandarin lesson is available through SCHOLAR. SCHOLAR is an online learning tool that is originally available to all Higher and Advanced Higher students in Scotland but Phillip John, the Dean of science and engineering at the university and executive chair of the SCHOLAR Forum, offer this to general public so that any individual who want to learn Mandarin can now possibly learn for free. All you need is a computer with internet access!
So if you want to start learning Mandarin now, simply visit this site.