Questioning 

Questioning challenges students and teachers to use good questions as a way to open conversations and further intellectual inquiry. Effective Questioning (by the teacher and by students) deepens classroom conversations and the level of discourse students apply to their work. Teachers use this strategy to create opportunities for students to investigate and analyze their thinking, as well as the thinking of their peers and the authors they read in each of their classes. The mark of a highly engaged classroom is when all students are asking thoughtful questions on their own initiative. 

(JFF's Common Instructional Framework, Six Strategies to Build College Readiness)