Khan/khan-exercises — Issue #13123: Telling time 0.5 - Empty text box incorrectly presumes answer incorrect
Author: KhanBugz
Created: 2012-02-05 21:03:57+00:00
State: open
Labels: chrome, snowleo, wrong-or-unclear

Reporter: calvintennant@gmail.com

In Telling time .5 when the minutes box is left blank the answer validates as incorrect when the time is on the hour.

If when the minutes box was empty it defaulted to '00' it would be more forgiving to people answering the question.

Thanks :)

[telling_time_0.5.html?seed=15&problem=analog](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/telling_time_0.5.html?seed=15&problem=analog&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/telling_time_0.5.html?seed=15&problem=analog&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%2211%5C%22%2C%5C%22%5C%22%5D%22%2C4%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%2211%5C%22%2C%5C%2200%5C%22%5D%22%2C16%5D%5D)

[["11",""],["11","00"]]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7

MathJax is loaded, ready, queue length: 0