This is a unit that teaches logic for secondary students. It contains over 80 pages of daily warm-ups, quizzes, tests, and keys. Symbolic logic via the syllogism is emphasized, with Venn, Euler, and Johnston diagrams taught for the sake of dissecting syllogistic arguments for deductive reasoning structure and validity. This unit is in .pdf format and can be viewed with Acrobat Reader (free download at www.adobe.com).