This is an optional field. If you enter a students' ability level, they may be given the option to view and explore lessons that are at their level.
For example, if you have a 4th grade student who is learning math at a 2nd grade level, you can choose a Grade 2 ability level. When the student logs in, he will see his assignments from the teacher, followed by 2nd grade topics/lessons to explore.
Note: When students are logged in, they will not see the grade level displayed as "1st Grade," "2nd Grade," "3rd Grade," etc. They will see "Level A," "Level B," "Level C," etc.
If you do not choose an ability level, students will see lessons at their regular grade level. For example, a 3rd grader will see 3rd grade (Level C) lessons.