What some call cheating can help learning

Jay Matthews:

My daughter is with us for the holidays, having survived her first barrage of law school exams in California. The exams were longer and more difficult than anything I ever had as a graduate student in Chinese studies. But her professors allowed students to have notes with them. This got my attention because her boyfriend at a neighboring law school was forbidden to have notes in two of his exams.
At these two institutions dedicated to equality under the law, what my daughter did during exams at one could have been considered cheating if she attended the other. What are we to make of the uneven nature of such rules, just as unpredictable as those found in our public K-12 schools? Open-book exams are okay some places, not in others. Cooperating with friends on homework is encouraged by some teachers, denounced elsewhere as a sign of declining American moral fiber.