Increases core strength, improves balance.
Sit on your mat, with your knees bent and feet flat.
Wrap your arms around your knees.
Roll backwards, then roll back up.
Repeat this movement a couple of times.
It can be difficult to get the hang of this movement! It is ok to start with small rocking movements and increase the size of your roll as core strength and balance improve. If you get stuck, it is ok to use your hands to push yourself back to upright.