The learning progression will be used in a 9th grade high school class. The common core standards that this progression will be aligned to are HSA.REI.C.5, HSA.REI.C.6 and HSA.REI.C.7. Mathematical practices MP1: Make sense of problems and persevere in solving them, MP3: Construct viable argument and critique reasoning of others and MP5: Use appropriate tools strategically will be aligned to the learning progression as well.