📂 Included Lessons Index SequenceSection 1.1: Points, Lines, and Planes * Core definitions (Points, Lines, Planes, Collinear, Coplanar, Segments, Rays, and Opposite Rays) with visual diagram workspaces. Includes complete solution keys at the end of the section block for naming points, lines, planes, and sketching intersections.Section 1.2: Measuring & Constructing Segments * Axioms, coordinates, and ruler placement formulas. Explains segment congruence conventions, formal geometric construction