**INSTRUCTIONAL UNIT**

**Lesson: Introduction to Trigonometry**

**by Mary H. Bruce - EMAT 6690**

**This instructional unit is intended as an introduction to
trigonometry and trigonometric graphs for students who have a sound knowledge of
geometry and graphing techniques from Algebra II. It is not intended to be
an exhaustive presentation of the concepts but serves more as a technologically
based instructional unit designed to enrich a student's basic understanding of
the concepts through animation and other visual tools.**

**DAY 1: Ratios in a Right Triangle**

**DAY 2: Degrees and Radians/Coterminal and Reference
Angles**

**DAY 3: The Unit Circle**

**DAY 4: Graphs of Sine and Cosine**

**DAY 5: More Sine and Cosine Graphs**

**DAY 6: Tangent and Reciprocal Graphs**

**DAY 7: Applications **

**DAY 8: Assessment**

**RETURN to Mary's Page**