<p>Most questions asked by instructors are 80 percent open and closed with 20 percent being procedural. Of the 80 percent, 60 percent are closed and 20 percent open. Procedural questions as discussed is 20 percent. To increase open questions is to follow up closed questions with "why" and ask students to expand. First and second wait time is usually rushed. Instructors need to include everyone so wait times can be increased without it exceeding and creating long silences. Think-pair-share is a useful way to increase class retention of knowledge and participation.</p>