• # Due Tuesday

## Topic 7 A:  Trigonometric Ratios and Acute Angles

Essential Question: How can ratios of lengths of sides within the right triangles help determine other lengths and angle measures in the triangles?

Vocabulary: co-function, co-function identities, co-secant, cosine, code tangent, reciprocal trigonometric functions, secant, sine, tangent

Date

Section

Objectives

Assignment

Standards

Prior Learning

Find the missing side links of a 45-45-90 triangle.

Find the missing side links of a 30-60-90 triangle.

Review Trigonometric Ratios

Discover Trig Ratios Lab

Algebra with Pizzazz Worksheets 227-230

MAFS.912.G-SRT.3.6

MP 8

4/1

7-1

Use special triangles to determine trigonometric ratios geometrically.

Use trigonometric functions and the Pythagorean theorem to find missing side lengths.

Envision Textbook page 360 #7-12, 15-19, 21-31, 34, 35, 37

MAFS.912.F-TF.1.2

Essential Question:  How can we extend the trigonometric ratios to angle greater than 90°?

Vocabulary: coterminal angles, initial side, reference angle, reference triangle, standard position, terminal side, unit Circle

4/2

7-2

Find the measures of an angle in standard position and its reference angle.

Work with angles in standard position.

Find coordinates of points on the unit circle

Envision Textbook Page 371 #1-3, 6, 7, 16, 19-30

4/3

4/6

7-2

Find the length of an arc of a circle.

Memorize the Unit Circle Packet - this has two parts (1) The craft project (first three pages put together or the project I did on the video with the oatmeal container) (2) the last page which is the completed unit circle.

Envision Textbook page 371 #4, 5, 8, 9, 12, 13, 17, 18, 31-42

MAFS.912.F-TF.1.2

MP 1-3, 5