The document discusses different conceptual frameworks for structuring a lesson, including:
1) A linear beginning-middle-end structure that starts with reviewing homework, sets the lesson context, has students do exercises, and ends with reviewing and assigning homework.
2) A pre-while-post structure that engages students before the lesson, has students do tasks during the lesson, and follows up after.
3) A test-teach-test structure where the teacher tests students initially, teaches new material, and tests students again to check understanding.