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vdorff

vdorff commented, July 31, 2017 02:00
[the team is always looking for feedback to improve and better the system for both sides] Looking for a compromise in this situation is exactly the problem. Beyond the inexcusable change without no...
vdorff commented, July 26, 2017 22:37
You have undone the thing that made Khan Academy so great. When my students complained that they were getting sent back for getting one wrong out of five, I explained to them that it meant there wa...