When it comes to arm balances and inversions, not all poses are fit for classes, especially beginner classes. They can be incorporated into level 2 or 3 classes, as long as the students are comfortable with the pose and the teacher as well. The one thing I learned from Colleen is that if you are not comfortable with doing the pose yourself or in your own practice don’t teach it to your students. I agree with this. You don’t want to go into class and teach a pose you are uncomfortable with.
The are many benefits for these poses. Some poses help the body by lengthen and strengthen the core, legs, upper torso/arms, and improve balance. Other poses may help with opening the chest, help with stretching the lungs, throat, and shoulders. There are benefits for the mind such as calming the mind, staying focused, and expressing freedom.
There are some poses that I incorporate into my daily practice that I would feel comfortable teaching in a class, such as Wild Thing, Side Plank, Shoulder Stand, and Head Stand. I would teach these poses because I have practice them enough that I would feel comfortable enough to teach them in a class. I would be able to give the verbal cues needed to help them into the pose. The poses I wouldn’t teach would be Crow Pose, and Side Crow Pose. I have not attempted to do these poses in my own practice, so I don’t want to try to give the verbal cues they would need to help them into the pose and I wouldn’t be able to demonstrate the pose as well. Maybe one day I will be able to do that.