Predictability is the enemy of learning. It is also the enemy of interesting. Predictable is boring. I hate watching movies if I can predict the ending. I love surprises.
One small step in this direction is to occasionally have prayer in the middle of class. We usually follow a predictable pattern. We pray at the beginning. We pray at the end. Predictable.
Every now and then mix things up. Pray in the middle of class. It is a small thing. There are other things you can do. If you always sit in the same place, sit someone where different. Face the chairs in the opposite direction. Go outside. Take a walk. Use a prop. Break up into buzz groups. Do anything—anything that you did not do last week—to break things up a bit.