Geometry formalizes and extends students’ geometric experiences from the middle grades. Students explore more complex geometric situations and deepen their explanations of geometric relationships, moving towards formal mathematical arguments. Six critical areas comprise the Geometry course: Congruence, Proof and Constructions, Similarity, Proof and Trigonometry, Extending to Three Dimensions, Circles With and Without Coordinates, and Applications of Probability. The Mathematical Practice Standards apply throughout each course and, together with the content standards, prescribe that students experience mathematics as a coherent, useful, and logical subject that makes use of their ability to make sense of problem situations. This course is designed to be a small class environment for students enrolled in a special education specialty program. The class will incorporate instructional practices and strategies based on student learning styles and individual needs.