Using the additivity of angle measure, students find the measure of the missing part of a right angle
A. Explore the symbol for angle measure
B. Explore the additivity of angle measure (Level 1)
C. Explore the additivity of angle measure (Level 2)
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