Can computers teach writing?

Jay Matthews:

Like many people, I am appalled at how little writing American students are asked to do. But when we crotchety advocates complain about this to teachers, we have to shut up when they point to a seemingly insoluble problem.
If we required students to write a lot, teachers would have to do many extra hours reading and commenting on that work. They would have no lives and would have to quit. If we could cut ­English class sizes in half, the teachers might be able to handle the load, but that won’t happen unless oil is discovered under the football field.
A 21st-century solution, proposed by former Gates Foundation education executive director Tom Vander Ark, is to let computers read and grade the ­bumper crop of essays. Assessment software, already used to grade essays on the GMAT business school entrance test and other standardized exams, doesn’t need a life and doesn’t cost as much as breathing, pencil-wielding English teachers.