Another good post about grades and their impact in the classroom.
His take on giving a student a zero:
Zeros do not reflect student learning. They reflect compliance. Instead of zeros, we should enter incompletes, and use these moments to correct behavioral errors and mistakes. Often, one zero can mathematically destroy a student’s grade and pollute an overall metric that should reflect student learning. Here, grading is getting in the way of truly helping a student, as well as showing what that student really knows.