Many churches see the worship service as the front door to church membership. But people seek relational learning experiences, something a worship service just is not designed to provide. The Sunday School class is designed as a small group that provides an ideal setting for building relationships. Learning names is hard. Teach to invite participation and discussion.
Nothing hinders relational learning like the lecture teaching method.
Relational learning occurs when learners are allowed to share their personal experiences and opinions. If the teacher is the only one talking, relational learning isn't taking place. Plan events that build relationships. Discover the recreational interests of your class and regularly plan to do something together. Control the size of your class.