Can We Have Competency-based Education

As we consider the necessary redesign of schools, specifically less rigidity and more choice in schedules and post-grad and seat time, the issue of competency based education must be a primary consideration.  In "Considering Competency-Based Education" education advocate and author Tom Vander Ark concedes that the "transition will be tough."  This is a complicated issue - for the definition of competency is ambiguous at best.  Students in my English classes may write thirty essays during the year, and while some maintain A's throughout, I would hesitate to argue they are competent - and "done" - after only a few.  Education builds on itself, and there is much to be said for  repetition and practice and expertise.  That said, Tom's points are well taken and should be part of a more efficient system.