You can use Kickboard's "Compare" filter in the Academic Analysis menu to see how different classes are performing.
As a CM, this can help you identify skills to prioritize for re-teaching for each class. Using this filter, you might realize that some classes need to review skills that are others do not.
As an MTLD, this can help you identify the class you want to observe for each CM because it can help you identify the class with the lowest overall standards mastery.
Here's how it works.
If you're analyzing by Multiple Skills, the default settings will show each student's mastery for each skill.
To see each group's mastery, select "Groups" in the Compare dropdown menu.
Now, you'll see each group's mastery, both for each skill and overall.