1. Give enough attention and love: Second-born children need more attention and love, because they will feel neglected or excluded. Parents should spend more time and energy with them to make them feel valued and cared for.

2. Don't be partial to one child: Parents should try to avoid being too partial to one child, which will make another child feel unfair and lost. Parents should treat their two children as equally as possible and let them feel fair and equal.

3. Give enough freedom and independent space: Second-born children also need enough freedom and independent space so that they can develop their own personality and hobbies. Parents should respect their children's choices and give them enough freedom.

4. Establish a good family atmosphere: A harmonious and warm family atmosphere is very important for the education of the second child. Parents should try to avoid quarrels and conflicts and create a stable and safe family environment.

5. Help children establish sibling relationship: The relationship between siblings is very important for children's growth and development. Parents can help their children to establish a good sibling relationship and let them learn to respect, understand and support each other.