This course is a problem-based, hands-on investigation of Geometry. Students engage in lessons that focus on developing the critical thinking skills and habits of mind to solve advanced math problems. Taught through the use of manipulatives, exploration, pattern recognition, and technology, students will develop ideas and experiences that lead to formal geometric proofs and postulates. Creative problem-solving and ingenuity are critical skills for the course. Students will get instruction and feedback on their development. Investigations include an introduction to the language of Geometry, recognition of invariants, congruence, areas and volumes, similarity, and circles. Students are required to meet expectations in understanding and mastering concepts, and developing independent application. Students use the TI graphing calculator in the course. (Full year, 1 credit)