This course is the first half of a full year Geometry experience for students and needs to be taken with Geometry B. The class will address the Massachusetts Curriculum Framework for Mathematics Incorporating the Common Core Standards for Massachusetts. The eight Standards of Mathematical Practice will be incorporated throughout the year in that it is designed to involve students in active learning, inquiry based problems and problem solving strategies to build conceptual understanding and to strengthen students' abilities to think, reason, and problem-solve using mathematical understandings and skills. Students will learn about congruent and similar figures, geometric proofs, transformations, coordinate geometry, properties of 2-dimensional figures (triangles, quadrilaterals, and circles), trigonometry, and basic probability. Students who excel during the 1st semester of the course will be given the opportunity, with teacher recommendation, to move into Honors Geometry for the 2nd semester.