Some Yoga certification courses devote a day or two to the the use of stability balls for a prop or for therapeutic use. With that said...
The sitting postures of Hatha Yoga are important as ideal postures for a correct practice of Pranayama and meditation, apart from limbering legs and hips, strengthening the back and improving the posture. They are the most efficient postures of the body to allow psychophysical energy to flow freely with maximum relief of tension.
A Power Yoga teacher is called, by the fitness center she works for - to substitute her class for the regular step aerobics class; this...
If you are already a Yoga teacher, you can see a lot of potential to help others, but Yoga is not all you teach. Everyone teaches someone...
Some Yoga teachers forget the need for instruction at the beginner level. Recently, I have been guilty of that, as well. Many of your Yoga classes should still be geared toward beginners.