Critical Thinking is a learning outcome that enables you to keep going further and further in your education. Being proficient in this learning outcome can help you do outstanding in subjects like math or english. In these types of classes you really get challenged with certain assignments and you really have to think hard about how your going to accomlish your objective.
Example:
Health... Basic Human Right? --- This was a project me and a partner completed in my advanced environmental studies class. We were given a list of questions to choose from and my partner and I decided to attack this one. I feel that it demonstrates critical thinking because my partner and I were confronted with a very difficult and controversial question that we had to seriously think about and try to answer.