Use units as a way to understand real-world problems.*
Use appropriate quantities in formulas, converting units as necessary.
Use proportional relationships between the area of a circle and the area of a sector within the circle to solve problems in a real-world context.*
Make sense of problems and persevere in solving them.
Construct viable arguments and critique the reasoning of others.
Model with mathematics.
Use appropriate tools strategically.
Attend to precision.
Look for and make use of structure.
Look for and express regularity in repeated reasoning.