The trend of the four-day school week is growing in Louisiana and nationwide — especially in rural areas — but the concept is not catching on in larger areas such as Baton Rouge, local and state education officials agree. Most schools make the switch to longer days, but shorter weeks, to save on utility and transportation costs. East Baton Rouge Parish School Superintendent Charlotte Placide says there are too many concerns about hurting the instruction quality and addressing child-care needs if students do not attend classes on Mondays.