After each mathematics lesson, Ms. Luewden has her students write in their math journals. They are expected to reflect on both the lesson and their individual learning, such as what was difficult about learning the skill and how they worked to find the answer. Each Friday, Ms. Luewdon has the students read their five journal entries from that week and write a brief summary wherein they discuss patterns and anomalies they observe in their own learning processes. Which of the following terms would be used to identify the skill Ms. Luewden is teaching her students?