As you have probably already read the first chapter when I taught you the proper words to say  to cast a simple spell.But now, I am going to teach you the language that wizards use.For instance, this is a simple word that I'm positively sure you've heard(if you are muggle born) ,muggle. children of muggles that are witches and wizards are called muggle born. A nasty way of saying muggle born  is to call them a mudblood.I am not going to tell you what it means because it is worse than worse!That was a simple lesson, but, at least we've gone through the progress.