Local families are invited to participate in a series of programs that promote positive parent-child interactions on Monday, April 19, from 4:30 to 6:30 p.m. in the Wallace Hall Atrium on the Virginia Tech campus. Registration will be held at 4 p.m. in Wallace Hall just prior to the sessions. The event, which is free and open to the public, will include supervised activities for children, refreshments, and door prizes.