1. Your first LaTeX document
    The anatomy of a LaTeX file — document class, preamble, sections — built up line by line into a compiled PDF.
  2. Writing math
    Inline and display math, numbered equations, aligned derivations, and the symbols you'll actually use.
  3. Figures, tables, and references
    Include images, build tables, and label everything so the text can point at it — the cross-referencing that holds a paper together.