You could [search](https://math.stackexchange.com/help/searching)
for questions from a certain time period and then order the
search results by number of votes, for example
[created:2013-08-26..2013-08-29 is:question](https://math.stackexchange.com/search?tab=votes&q=created%3a2013-08-26..2013-08-29%20is%3aquestion) or
[lastactive:2013-08-26..2013-08-29 is:question](https://math.stackexchange.com/search?tab=votes&q=lastactive%3a2013-08-26..2013-08-29%20is%3aquestion).