Presently, there are many issues that impede the sound development of children such as class disruption, bullying, truancy and so on. The creation of autonomous class groups through leadership development that need not rely on teachers is considered a basic measure to tackle these problems. Developing the sociality and sense of self-affirmation in children through positive activities in a safe and secure environment at each grade will also stoke their desire in adopting a more positive attitude towards learning and school life. While this type of autonomous class group is also inclusive to children of different personalities, e.g. developmental disorders, underachiever, it needs to be maintained continuously starting from the junior years in elementary school. Consequently, the training and development of teachers is considered to be a most urgent task. This manuscript therefore introduces a part of the educational practice of the second author who has been involved in the formation of class groups through leadership development for many years.