Recess Time
The local pastor needs to spend time with the kids in their school environment because usually there is not enough time on Sabbaths. The best way to connect with children is through activities, all while developing supportive relationships with them and the staff. Start with recess; every kid loves recess!
A good resource for this is Partnering in the Mission: Pastor and Teacher Resource Manual. It goes into great detail about this area of evangelism. Read the sections "Influencing Through Example" and "Reasons for School Visitation."