1. Convenient communication between parents and teachers: By joining the class group, parents can communicate with teachers and other parents more conveniently, learn about their children's performance and learning at school, and share their own parenting experience and family education methods.

2. Get more educational resources: Class groups usually share some educational resources, such as study materials, teaching videos and educational articles. These resources can help parents better guide their children's learning and improve their learning efficiency and grades.

3. Participate in class activities: Class groups are usually platforms for organizing various class activities, such as parent-teacher conferences, class spring outing, and collective birthday parties. By joining the class group, parents can better understand the information of class activities and participate in them.

4. Understand the child's growth trajectory: Through the class group, parents can have a more comprehensive understanding of the child's growth trajectory, such as the child's hobbies, specialties, personality characteristics and so on. This information can help parents better understand their children and provide better support and help for their future development.