Teacher/Student Management & Grading

Is there anyway to assign learners to teachers? I will have a set of teachers that will cover a defined set of students, while the students go through multiple lessons.

Teacher A will have student group A and teacher B will have student group B, but both students may go through the same lesson at the same time. I was wondering if there was a simple way to assign the teachers to the students so that grading is easier.

Also, is there anyway to do the assessment in one page? Grading tends to take a while when we have to load a brand new page to view each answer.