The course teaches the concepts. This layer turns them into interview performance.
A clear explanation is necessary, but interview skill needs repeated production, feedback, and transfer. Use this layer to turn each chapter into something you can say, draw, score, and retry.
Recognition says, "I understood the model answer." Production says, "I can generate a structured answer under time pressure." The training system pushes you toward production.
Say the core idea and one old idea from memory before looking back.
Answer one fresh variation with a short timer and no notes.
Use the rubric, identify one weak dimension, and retry that slice.