The document discusses the concept of metacognition, which refers to thinking about one's own thinking and learning processes. It defines metacognition as consisting of metacognitive knowledge and regulation. Key aspects of metacognition include monitoring one's progress, evaluating learning strategies, and making adjustments when needed. The document outlines categories of metacognitive knowledge such as knowledge of personal learning variables, task variables, and strategy variables. It also provides examples of teaching strategies that can help develop students' metacognitive abilities.