Many chumash test questions are short answer and fill in the blank. I create grading stations in the back of the room for students to self-check their work. The reason I do this is I have found that the students take greater ownership when they are faced with their own mistakes. Some students are prone to skip questions, when they face the disappointment of grading a skipped question, they are less likely to do so in the future.
The grading table is set up with answer keys and pens. Students come to the table with their test paper and that is all. I stand near the table to monitor their grading. It gives them immediate feedback which helps them learn and makes sure they get their tests back right away