For Board Meetings when we address this topic we have kept it simple.
Begin with a scripture passage that shows how important children are to Jesus, such as when he visited the Americas and took the time to bless each child.
Then ask if Jesus came to church on Sunday where do you think you would find him? (With the children).
Bear testimony that each child is important, not just a name on the roll, and we need to contact and love each child in Primary.
There is also a Primary videotape the church puts out that has a segment addressing Primary teachers contacting inactive.