When looking at how and what to train our players, with the intent on helping them achieve their soccer goals, it is important to have a basic understanding of the intellectual, emotional and physical developmental stage of the players we are coaching.
Here are some links to help you understand where your players are by age:
"The guided discovery method of coaching is a way to create self-thinking players. The approach invites the player to think, to go beyond the given information & then discover the correct skills." - Sam Snow, Coaching Director for US Youth Soccer.
This article discusses when you should start assigning kids into positions. It also discusses what goes into making players good at each position.
This article will give you some ideas of what you can do to make the game more productive and enjoyable.
The Basics of Goal Keeping provides short descriptions of information and activities that will help your goalies.