### Lessons

- Geometry – Section 1.1 – Sets, Statements, and Reasoning
- Geometry – Section 1.2 – Informal Geometry and Measurement
- Geometry – Section 1.3 – Early Definitions and Postulates
- Geometry – Section 1.4 – Angles and Their Relationships
- Geometry – Section 1.5 – Introduction to Geometric Proof
- Geometry – Section 1.6 – Relationships: Perpendicular Lines
- Geometry – Section 1.7 – The Formal Proof of a Theorem