This week, The Big Think published a short video of Hal Gregersen, a co-author of Clayton Christensen, where he says that he has data showing that “the average high school student asks one question of substance per month in a classroom.”

He didn’t give any indication about where he found that data, though. And, though I could find some other places where he alluded to this topic, I couldn’t find him giving any source for his information.

Does anyone out there know his source?

I’m a bit skeptical, though, of course, it also depends on your definition of “average” and of “substance.”

Does it reflect your experience in the classroom?

You might also be interested in The Best Posts & Articles About Asking Good Questions and The Best Videos Showing The Importance Of Asking Good Questions.