From the main menu go to
Events > Dirt Academy > Rally > *Pick a Class* > Lessons > Advanced Driving Techniques
It has 5 exercises.
4 of them you have to take part in, 1 of them is a quick video.
Once you click one of the exercises, you can either choose to watch the into or click the menu button, skip and then race around the track. Once you have done one lap, hit menu and leave that lesson.
Rinse and repeat for the other 3 lessons.
POP POP! 25g