The typical length of a group or private class is 60, 75, or 90 minutes.
Most yoga classes will make reference to Sanskrit yoga pose names and terminology. Sanskrit is an ancient Indian language that the first yogis spoke and the language in which many historic yoga texts were written. It may be very confusing at first, but once you start practicing regularly you will pick up the terminology in no time.
A class will usually begin with the teacher guiding you through breathing or meditation and then moving into the yoga poses. Many teachers tend to demonstrate very little and rely on verbal cues, but this really depends on the type of yoga class you are attending and the teacher.
A yoga class will end with a few minutes of lying down on your back in a pose called savasana with your eyes closed. The yoga teacher will either close the class while you’re lying in savasana, so you can leave when you’re ready, or they will bring you back up to seated and close the class by saying the Sanskrit word “namaste”, after which the students repeat it back.