Jealousy is a major cause of early childhood anger. For example I: When two young children doing the same or similar things (painting, exercise, etc.), teachers praise for a young child also may hurt another child care, and raises their anger. There are individual differences between people, each child has different characteristics and strengths. Teachers should pay attention to encourage, praise each child, so that children are confident, able to appreciate each other's advantages, learn from each other, rather than jealousy. In addition, do not like or tired children is the underlying causes of anger.