The teacher should model this early in the year then students can learn how to do this back to the teacher and with each other in a respectful manner. (ct3education.com)
The goal is that your daughter will learn to express differences of opinion in a respectful manner. (verywellfamily.com)
Doesn't seem like people can agree to disagree in a respectful manner in all areas of our society. (fatburningman.com)