Can Creativity Be Taught?

In this article, it poses the question can creativity be taught?

It compared the teachings such as the ones in art classes, to be similar to giving a plumber or carpenter the tools necessary to do the job, but without him/her having the knowledge necessary to become great at their profession. 

The author believes that creativity is something someone has to be born with, and that it cannot be taught, only shown ways it can be expressed. The question I ask you is; Can creavitivy be taught, or is it something someone has to be naturally born with?