You could, in theory, create only buckets named (A...F), feed a large number of essays to it, make it "learn" how the essays are classified using statistics, and let it grade essays for you after that.
The grading process allows users to send esays for grading and provides results and interactive feedback via the Web. An example of the system functionality and performance is presented under the 'Product Details' tab.
Guidelines for Grading An Essay
EssayTagger works entirely in your web browser so there's nothing to download or install on your computer. This means it doesn't matter whether you use a Mac or a PC, whether you're at school or at home. You can grade essays from anywhere in the world where there's an internet connection.
Unfortunately, essays is extremely time-consuming, and sometimes grading can be inconsistent. Now there is a that can grade essays as well as humans according to its developer Thomas Landauer. "From sixth graders to first-year medical students, we get consistently good results," says Thomas Landauer, a psychology professor at the University of Colorado who has been working on the program for 10 years.Grading rubrics can be of great benefit to both you and your students. For you, a rubric saves time and decreases subjectivity. Specific criteria are explicitly stated, facilitating the grading process and increasing your objectivity. For students, the use of grading rubrics helps them to meet or exceed expectations, to view the grading process as being fair, and to set goals for future learning.
In order to help your students meet or exceed expectations of the assignment, be sure to discuss the rubric with your students when you assign an essay. It is helpful to show them examples of written pieces that meet and do not meet the expectations. As an added benefit, because the criteria are explicitly stated, the use of the rubric decreases the likelihood that students will argue about the grade they receive. The explicitness of the expectations helps students know exactly why they lost points on the assignment and aids them in setting goals for future improvement.