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Re:'A Test You Need to Fail': A Teacher's Open Letter to Her... by CookWithMe on Saturday March 24, 2012 @06:37AM (#3749043)
> The problem is scale.

And not only for grading, but for teaching as a whole. There is just no smart solution for educating children at a larger scale - we have to do "brute force". The less children per teacher, the better.

(Different story for adults who can autodidact, I guess, but even at universities the student / prof ratio is important).

Re:'A Test You Need to Fail': A Teacher's Open Letter to Her... by ippisl on Saturday March 24, 2012 @02:38PM (#3750203)
I'm not sure that's the case.

One example of a teacher scaling is khan academy. I think that something like khan academy could have been done even before the internet, even with VCR's. And automated practice(in math) using computers was available when i was a kid and we even used it through grade 6 , but in grade 7 when we moved to another school we stopped using it.

I think the problem is more due to the fact that the teaching profession is conservative(mostly as a way to maintain power, which is not unique to teaching by any means).