Khan/khan-exercises — Issue #8109: Number line - Won't Save Proficiency
Author: KhanBugz
Created: 2011-12-08 11:09:26+00:00
State: open
Labels: chrome, other, vista

I become proficient in this exercise and many others but it doesn't save when I go back to the exercise tree to choose a new exercise. I can't make any progress.

[number_line.html?seed=149&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line.html?seed=149&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line.html?seed=149&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

MathJax is loaded, ready, queue length: 0