Pas de Bourree Basics
Pas de bourrée means “beating steps.” It is called this because, when you're doing the step, your legs appear to "beat" together for a moment before opening again.
Pas de bourrée is used heavily in choreography as a transitional step between other combination elements, and in ballet class center combinations (often as a means to "switch sides").
Here's another great tutorial from Julie, at Ballet for Grownups, on pas de bourrée basics. (I just love Julie's videos!)
A good way to get comfortable performing pas de bourrée, is to practice them holding onto the barre (or any other handy support, like a kitchen counter, the back of your sofa, or a room banister). This enables you to concentrate on getting the steps down, without also having to balance.
If it feels confusing at first, stick with it and don't get discouraged: after a while, this step will flow out of you quite naturally, and you won't even need to think about the individual components.