At this point in our education, many of us have become fairly proficient in academic reading and writing within our disciplines. It has becomes so familiar and so far to say ingrained in our minds that it is easy to forget that this type of academic language is learned, and would not come naturally to many native English speakers, never mind English Language Learners. I am becoming aware that some of the vocabulary and terms used in art, such as objectivity, aesthetics, formal, might have incredibly different contexts outside the discipline.
Keeping this in mind, teachers must play the careful game of simplifying and explaining complex terminology and paraphrasing them into more digestible sentences, as well as building up their tolerance to these sorts of texts. One suggestion that I would make for the more visually inclined learners is to associate themes to colors. For example you may ask students to group things like statements, predictions, persuasions, and questions, into red, blue, green, and purple instead of simply highlighting through an academic text. Anything that helps make stronger connections between the words and the ideas will increase understanding of the subject.
I like the texts suggestion of using kinesthetic activities to break down complex texts. These include the more, some might argue, intuitive gestures such as hand motions and emphasizing word intonation, as well as involving gestural metaphors, swooping hand gestures for broader concepts, abrupt or condensing motions for simpler ideas.
Kathy