A back hand spring is the most common form of gymnastics in cheerleading.
A Back handspring can be incorped into a cheerleading routine several diffrent ways.
The first video shows a simple standing back handspring this is best used in dance or cheer parts of your routine , to help get the crowd involved.
The next two videos display a form of tumbling called a roundoff before the backhandspring. These are best placed into the routine at the tumbling section. With multiple girls tumbling it helps to set up a interesting formation.
When doing a roundoff back handspring , to your abilty you can add as many as you want as long as you feel comfortable and have enough power.