We would like you to meet the professor.
He will become a good friend. In most cases, if you click on him, he will pronounce the word you are working on. Go ahead and try it now. If you can't hear him talk, check the "System Requirements" on the Home page. If you do not understand what that means, ask your teacher.
In a few cases we show the QuickTime control bar under the Professor. This makes it easy for you to have the Professor repeat parts of what he has said.