Believe it or not, it's here already. The first day of school got underway in Oroville today and students were excited to get back into the classroom. The Thermalito Unified School District kicked off the start of the school year this morning. It was also a big day for teachers and staff as the school district has hired on more teachers and is working on cutting class sizes from 30 students to 24. The school year for other Oroville school districts starts tomorrow. School in Chico starts up next Monday.