How to curve an exam and assign grades

We have all given exams where the grades end up lower than we hoped. A curve is in order. How do we do it? In this post I share my thoughts on when you should (or should not) curve an exam. I give ten sample curving techniques, including pros and cons of each, I explain…

Do you give partial credit? How to grade Venn diagrams

Suppose that on an exam you asked your class to shade the region corresponding to¬† in the figure below. The problem is worth 5 points. The correct answer is: When you received their solutions, some students had regions shaded that shouldn’t be shaded and left regions unshaded when they should be shaded. My question is:…