As of the 2010-2011 school year, the maximum number of students in each core class are:
- 18 students in prekindergarten through grade 3
- 22 students in grades 4 through 8
- 25 students in grades 9 through 12
Class sizes got larger again at the start of the 2010-2011 school year, after the state re-defined what a core class was.
About two-thirds of the 849 “core” classes offered in Florida elementary, middle and high schools were downgraded to “extra-curricular” status, which has no limit on class size. Classes like calculus, anatomy and Spanish were affected.