1. Children attend different schools: If children attend two different schools at the same time, each school may provide different cards to manage students' study. Such a child can bind two cards, corresponding to different schools.
2. Children have multiple identities: some children may participate in different educational projects or training courses at the same time, and each project may provide an independent card to manage students' learning progress and grades. In this case, a child can bind multiple cards to better manage different learning identities.
It should be noted that for the same school or educational institution, one child is usually not allowed to bind multiple cards, because this may lead to confusion and management difficulties in students' learning records. Under the above circumstances, the binding of multiple cards can help schools or educational institutions to better manage students' learning situation and provide personalized education services.
In addition, with the continuous development of technology, there may be more flexible and personalized learning management methods in the future, such as using a unified identity authentication system to manage students' learning records, thus achieving simpler learning management.