BLANCHARDVILLE - The Pecatonica Area School District will host Child Development Day for parents of children who were 3 years old by Sept. 1. The event is from 8:30 a.m. to 12:30 p.m. Monday, Oct. 7 at the Pecatonica Elementary School gym, 701 School Road. Community and area organizations will attend the event to share information about how they serve the needs of children and families.