State law requires districts that start the school year more than 10 days before Labor Day to hold a public hearing.
The calendar calls for school to start Thursday, August 15, and includes 170 student instruction days and seven professional development days for teachers.
Half-days are scheduled for Halloween and Valentine's Day.
The last day of school, barring weather or other unforeseen cancellations, is scheduled for Friday, May 22.
The calendar was created by the Joplin Schools Calendar Committee, which consisted of a board member, parents, teachers, principals and support staff members representing both elementary and secondary schools.