This practice needs to be part of the classroom culture. Consistency is key to setting up expectations for students. Teachers must balance using No Opt Out against the need to keep lesson momentum going. Focus most on using this technique with questions closest to the learning objective.
Consider allowing students to use resources such as books, anchor charts, or any material posted in the classroom to help students answer.
Make this fun by using the ‘life line” format from the popular show. Students can phone a friend, poll the audience, or 50/50. Depending on the question, you could poll the class (like poll the audience) or eliminate choices (50/50). After the student uses the lifeline, the teacher has the original student share the correct answer. The key is to make the original student restate or rephrase the answer, so they are accountable for the right information.
When students cannot come up with an answer, as them to “boomerang” the question to another student. When the other student answers, the “boomerang” comes back to the original student and he/she has to restate/rephrase the answer.
During the lesson, the teacher has a ball ready and tosses it to the student who will answer the question. If a student is unable to answer they have the option of throwing it to another student. When that student answers he/she must throw it back to the original student to restate or paraphrase. This variation keep everybody engaged since they do not know when they are getting a question and the ball tossed their way. This is a version of Cold Call.