http://www.nytimes.com/2011/03/05/science/05legal.html?hp The New York Times of 11.03.05 reported that new artificially intelligent (natural language processing) software can perform the analysis of millions of documents in hours that would take lawyers months and cost 10 or more times as much. If AI can do this analysis for lawyers now, then with a little tweeking the AI can do the same to analyze millions documents related to the teaching of, say, Mathematics or Biology or grade school Natural Sciences.