# Pedagogy Reuse `youtube-render-pdf` teaching order: motive → idea → mechanism → evidence → takeaway. Paper-side changes: - Cite `§` / `Eq.(n)` / Figure / Table / page, not timestamps. - Front page is a bibliography card, not a PDF cover screenshot. - Math is `\[` or `align`, never `$$`. - Formula three-beat: Chinese motive, display math, flat symbol list. - `quotebox` for a short quotation with a source; no long PDF paste. - End major sections with `\subsection{本章小结}`; end the notes with `\section{总结与延伸}`. - Figures stay outside boxes. Locked first/last titles: 「这篇论文在问什么」…「总结与延伸」, then appendix 符号表 / 推导链一览 / 图表清单.