While I didn't fully agree with him, it did get me questioning my own practices. Was there a way that I could encourage students to challenge authority in a respectful, appropriate way?
Out of that reflection grew my Challenge Authority Cards. While I have developed a variety of them, I particularly like these that ask students to challenge or question the text they are reading. This skill is especially important as students read information on unscreened internet sources.
I find this is a great way to engage some of the higher level thinkers in a class - or early finishers. If you keep these handy, you can use them on the spur of the moment. So, just Copy These Questions, cut them up and hand them to students who are ready for a challenge.