First Nine Weeks Unit 1: Foundations of Geometry Unit 2: Reasoning and Proof Unit 3: Lines and Their Relationships Second Nine Weeks Unit 4: Triangles and Their Relationships Unit 5: Similarity Unit 6: Right Triangles Third Nine Weeks Unit 7: Quadrilaterals Unit 8: Circles Unit 9: Transformations Fourth Nine Weeks Unit 10: Area and Volume Unit 11: Assessing Geometry Knowledge and Looking Ahead SOL Preparation SOL Test