Comprehension

I'm reading the following for a course I am taking,

schools need to be able to provide high-quality instruction in both word-level and comprehension skills in order to meet the diverse needs of students who continue to struggle with reading in late-elementary, middle, and high school

and it occurs to me that this statement appears perfectly okay. But is it? If literacy is communicating and comprehending using a medium, then isn't focusing on just one kind of literacy in schools doing learners a disservice?
While I agree wholeheartedly, and took all but two courses for a reading specialist, I'm thinking beyond just reading. What about those learners who struggle with visual literacy, musical literacy, or movement literacies? Are the schools to focus on just reading literacy to the exclusion of the others?
Are all literacies connected or independent of each other? What have you learned in your travels through life about this topic? Tim Shanahan at literacy learning claims,

Good comprehension instruction should push kids to think more deeply

Why not good comprehension instruction in activities other than reading? When was the last time you pushed kids to think more deeply about a painting, a sculpture, a symphony, a theatrical play, a modern dance (just to name a few in no particular order)
technorati tags: Reading Comprehension Literacy
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