G'day Katie,
Thanks for the question. By the way, you and the team are doing a great job.
Bicycle kick or overhead kick is an expert move in football, which is made by throwing the body up into the air, making a shearing movement with the legs to get one leg high overhead to reach the ball (in original head height), which gets kicked backward over the player's head and ideally into the goal.
The common English name comes from the two legs that look as if pedaling a bicycle with one leg going forward to the ball and the other backward to create an opposite moment. The overhead kick is commonly known as Chilena or Chalaca in most of Latin America because it was Chilean teams which first used it.
There are two major situations (apart from showing off) where the bicycle kick would be useful in a game situation:
* When a defender is desperate to remove the ball from near his side's goal, but he stands facing the goal and with his back to the direction he wants the ball to go, and the ball is bouncing around and thus difficult to control.
* If a striker has his back to the opponent's goal and is in the opponent's penalty area or nearby, and the ball is bouncing at head height.
Pele was the best exponent of it. The steps are:
1) Keep your back to the target while keeping your eyes on the ball.
2) Bring the knee of your non-kicking leg towards your chest followed by the same motion of your kicking leg. This will look like you're riding a bicycle hence the name.
3) Extend your kicking leg to meet the ball while you're airborne and falling backwards.
4) Pedalling down with your non-kicking leg, kick through the ball.
5) Pull your toes back so your ankle makes a right angle as you connect with the ball.
6) Extend both arms and your palms to brace yourself.
7. Watch the knee of your kicking leg until you're on the ground to ensure you don't accidentally kick your head.
It takes practice to learn so you might need to work out a drill with a friend tossing a ball to you to practice. You might want to get a tumbling mat to practice on. Given the difficulty, it takes a while to get the timing right so don't be discouraged.
If you increase the speed of the pedalling, it gives you more power. That might be the area you need to work on.
I enclose some sources for your reference.
Good luck for your soccer team.
Thanks again for the great job you're doing and don't let the Yamster work you too hard.
Regards