One of the most important aspects of the IB Psychology program is the focus on critical thinking. However, many of us struggle to help students to develop this skill. One of the ways is to get them to think about how they know what they know - that is, meta-cognition.One of the ways that I do this is through the use of a simple Likert scale. At the beginning of a unit, I think about what "big understandings" I am hoping...