In order to engage all learners in the classroom, ensuring everyone has the opportunity to participate in discussions and do the important thinking when a question is posed, teachers use a variety of questioning strategies. In addition, teachers strategically vary the types of questions they ask to generate meaningful dialog that supports the development of high-order thinking skills. For more on developing strategic, focused and higher order thinking questions, see Strategic Questioning. See also Total Participation Techniques (citation here) for a variety of approaches to engaging all learners.