There are three courses with the same core idea: intellectual humility. As intellectual humility is one of critical thinking attitudes, I can say that these courses can improve your critical thinking skills. Authors say that intellectual humility is an opposite to intellectual arrogance, which can lead to biases and inefficient thinking practices. Intellectual humility is better way to think because people with this attitude change their beliefs more easily and generally more open-minded. As a result intellectual humility protects a person from dogmatism and ignorance.
These courses can help you to study different aspects of this topic: theoretical, practical and scientific. But I notices that not only practical part has practical application, you can probably apply knowledge from two other courses in your practice.
The authors also created different types of workload in these courses. Depending on your willingness to work you can do a different number of work. They estimate the amount from 90 minutes per week to more than three hours per week. I assume you can also switch between these levels of commitment any time if you like.
I haven’t studied these courses but their descriptions look promising, so if you want to improve your critical thinking and you find the concept of intellectual humility appealing, you can enroll there.
These courses created in the University of Edinburgh by professors who research epistemology, philosophy of psychology and philosophy of religion. All courses can be taken by learners of all levels and they don’t require any specific knowledge. But the authors also say that courses can be taken by first year undergraduate students, so you may need to have at least high school education.