Roshan disagrees. She says it's all about helping students understand difficult material. Flipping the classroom, she says, has made her students more independent, less-stressed learners, because for many students, the hardest part is applying the lesson to problem sets.
"In an English class, you send the kids home to read a passage, and then in class you discuss that passage," she says. "Why in math class am I more or less having them read the passage in class?"
I think you can apply the same argument to the flipped classroom that Dan Willingham does to learning styles: in practice, it is often just compensating for poor reading comprehension and/or inadequate textbooks. Math students always had textbooks that they could read at home.