Mastery Levels are useful for quickly visualizing student performance instead of having to scan individual accuracy percentages. It saves time when analyzing results and creating student groups, as well as provides a common language around student performance.

The Albert mastery levels and their accuracy percentages are:

Albert mastery levels are also color coded. You can view the legend within an Albert report by clicking the gear sign in the grade column header:

You can also hover over a student's grade to identify their mastery level.

These are set by default in Albert and cannot be customized.  

You can review student mastery levels for any of your classes within the Reports Tab: