How many levels in standards based grading?

What if instead of the typical four standards based grades, we only had two. No rating means not not attempted.

A level 1 means almost proficient

A level 2 means proficient.

Anything above a level 2 is the next standard up.

Where would this not work?

Setting Goals as a Family

Another fun group game: Celebrate the Failure of Counting from 1 to 20