You can validate a student's perspective and contribution to the discussion whether you agree with them or not, demonstrating that diverse viewpoints are welcome and encouraging expression.

If the opinion shared is extreme or polarizing, you can bring in counterpoints or ask the class to offer up alternative perspectives.

If the opinion shared is potentially harmful or offensive to other students, address the content respectfully but firmly. You can challenge the idea and redirect the discussion without attacking the student.

Remind students to engage with different viewpoints thoughtfully and respectfully, and model that behavior.

Frame the discussion within the context of the learning objectives of the course. Maintain focus on the academic goals of the discussion.

After a contentious discussion, it can be helpful to provide students a structured opportunity to reflect on the conversation and whether it challenged or affirmed their point of view.

Use the moment as an opportunity to encourage critical thinking. Ask follow-up questions that encourage students to explore the rationale behind the opinion, consider evidence, and weigh different perspectives.

Reinforce that the classroom is a space where it's okay to explore and challenge ideas, and that agreement isn't necessarily the goal.