To get the benefits of the yoga practice, you have to do it nearly every day. The role of class is build your knowledge. It is the daily practice at home that gives time for building flexibility, strength and quiet inside.
When you are new to yoga, it is a good idea to start practicing right away. You can start by doing the poses you remember from class.
When you take the fundamentals series, your teacher gives you this Fundamentals Handout to help remind students of the poses to do each week.