After a curriculum change, depression in St. Louis University Medical students has decreased in the past four years.
This year Missouri switched from a 14 point to a 140 point system for grading districts, making it a lot harder for districts used to seeing perfect scores to achieve them.
Bethalto School District Technology spokesman Justin Newell says students will receive either a one, two, or three to indicate progress in a given subject.
Grades would be assigned to every school in a district.
Investigators are looking in to inflated grades on certain marketing material.