"When we start the school year, I talk to the kids about celebrating 100 days, and they really can't grasp how many days that is," says teacher Sara Garcia of St. John Paul II Catholic School in ...

Cushing Elementary School celebrated their 100 days milestone with a parade and a balloon release. “100 days where we were learning and growing and just developing our school community.

Lots of schools encourage students or staff to dress up as 100-year-olds on the 100th day of school—a move some say is fun and others find ill-advised, exclusionary, or offensive.