In this post by Ewan McIntosh at @NoTosh, teachers and students are challenged to determine low and high order questions. The latter than becomes the focus for the duration of the lesson.
Why? McIntosh states:
Every topic, every bit of learning has content that can be Googled, and we don’t want teachers wasting precious enquiry time lecturing that content. We want students, instead, to be using class time to collaborate and debate around the questions that are Not Googleable, the rich higher order thinking to which neither the textbook nor the teacher know the answers.