Central Angles ( 4-1)

The Unit Circle (4-1)

Circular Functions (4-2, 4-4)

Lesson Essential Questions:

How do you convert angle measures between radians and degrees?

How do you describe central angles and their position on a circle?

How do you find angles that are coterminal with a given angle?

How do you find the complement and supplement of an angle?

Lesson Essential Questions:

How do you derive the coordinates of the points of all special angles on the unit circle?

How do you determine the reference angle of a given angle?

How do you recreate a unit circle with all special values in both degrees and radians from memory?

Lesson Essential Questions:

How do you find both exact and approximate values for the six trigonometric functions of special angles on the unit circle?

How do you find the values of the six trigonometric functions of an angle in standard position given a point on its terminal side?

How do you evaluate inverse trig functions for angles on the unit circle to find both exact and approximate values?

Vocabulary:
radians, degrees, initial side, terminal side, positive angles, negative angles, coterminal angle, quadrantal angle, complementary, supplementary

Vocabulary:
reference angle, special angles, unit circle

Vocabulary:
sine, cosine, tangent, cosecant, secant, cotangent, arcsine, arccosine, arctangent