My Fifth Grader has always displayed her great ability to draw.  She amazes me that she can see it and then can just draw it.  We learned early on that she was a visual learner and so we include that in her daily curriculum.  She must be able to express it somehow through drawing or writing to make it stick (this is why we started using lapbooks).  She has never had art classes, although this has been one of her request.  It will definitely be something we look into in the future.