That's because the homework was more than 7 days old, then it will be graded by an assistant teacher

Your homework still needs to be corrected by 5 people, but your homework will get in front of non-vip homework, when showing users homework to grade.

First 3 new topic areas added :)

Teacher Offices (In Hogwarts tab, Second Floor)

Classroom (In Hogwarts, Second Floor)

Shrieking Shack (In Hogsmeade)

It is a good idea, but the different houses should already have teams doing this.