Given the measures of a whole angle and one of its parts, students subtract the known part from the whole to find the measure of the missing angle
A. Explore the symbol for angle measure
B. Explore the additivity of angle measure (Level 1)
D. Solve problems with right angles
E. Solve problems with rectangles
F. Solve problems with straight angles
G. Use equations to solve angle measure problems
H. Use equations to solve 2-step angle measure problems