Neither does he, but that's not important to leftists like McLaren. What this kind linguistic drool is all about is to intimidate the reader: "gee, I don't understand what he's saying but it sure sounds impressive..."
You, too, can write like a liberal educator. Create endless run-on sentences with words like, hegemony, pedagogy, praxis, exegesis, patriarchy, postmodern, and multicultural. If you need to make emphasis, use racist, jingoistic, or, my favorite, ludic, as spicy adjectives. Lather, rinse, repeat.
Here's one of mine: "A pedagogy must be made available to teachers that will infuse their pedagogies with postmodern elan of the ludic intellectual hegemony inherent in the white male patriarchy".