Having parental involvement in the classroom is a really good positive reinforcement key in having a child participate in the classroom. When one, or both, parent shows an interest in the classroom, or class activities, then their child show more excitement in their class and their classroom. My parents were a little involved with the classroom and I really honestly feel that was a little downfall to my education.
Having the parents involved in the classroom, not only gets the child more enthused about learning, but it also gets the parents involved and knows what the child is doing in the classroom.