The document discusses the framework for assessing the essential ideas and concepts necessary for deep learning within a specific discipline, focusing on subject epistemology and ontology. It emphasizes the role of structured reflection by students as both learners and teachers, encouraging critical exploration of pedagogical evidence and individual synthesis of personalized teaching propositions. The adaptive subject pedagogy model is introduced, highlighting that even with the same subject matter, students' propositions will vary based on their unique experiences and evolving expertise.