Khan/khan-exercises — Issue #10186: Number line 2 - Possible to achieve "proficient" rating with repeated questions
Author: KhanBugz
Created: 2012-01-03 23:17:45+00:00
State: open
Labels: other, safari, snowleo

Reporter: khanacademy@feedmyego.com

I was able to get a "proficient" rating while answering several repetitive questions. As an example, I was asked to identify 2 twice and 5 twice, and was never asked to identify a negative number. I think I was also asked to identify the same number twice in a row. I know the number line only has 11 integer positions, but a "don't ask the same question twice in a row" filter seems like a good idea to me.

Thank you!

[number_line_2.html?seed=193&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line_2.html?seed=193&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line_2.html?seed=193&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%223%5C%22%22%2C3%5D%5D)

["3"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7

MathJax is loaded, ready, queue length: 0