First off, I will not take credit for creating this method. I learned this method from Greg Jacobs, a Physics teacher and all around great person from Woodberry Forrest School.
The first thing you have to make sure you have for this method is a strong rubric set up for all questions. Most of my rubrics are based off of AP rubrics for Calculus AB and Physics B; meaning they are measuring specific skills, including the ability to explain mathematics and to set up the appropriate equations and situations.
After the test is created and all rubrics written, the students take the test. The test is graded strictly on the rubric. The important thing about the rubric is students can only loose a point once, meaning if they make a mistake early on, but do all of the mathematics correctly from their on out, they only are penalized the one point they missed (even if the final answer does not match up).
After the test, all of the students to corrections. I give them a simplified rubric so they can see where they missed the points, then I give them some short questions to answer based on the original test questions. In order to earn credit for their corrections, then they have to correct the original question and answer the shorter questions given to them.
Finally, a few days after the corrections are completed, I give a brief recall quiz based on the test. This quiz focuses on the fundamentals and less on the calculations, and acts basically as a solidifier to commonly missed concepts.
