Activities

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- Download All Files (ZIP)
- Teacher Files
- Teacher Notes PDF
- Student Files
- Student Activity DOC
- Student Activity PDF
- UNITC.8xv
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: Algebra II: Trigonometric Functions
- Math: Precalculus: Trigonometry (Triangle and Circular Functions)
Author

Texas Instruments
Level

9-12
Activity Time

15 Minutes
Device
- TI-83 Plus Family
- TI-84 Plus
- TI-84 Plus Silver Edition
- TI-84 Plus C Silver Edition
- TI-84 Plus CE
Software

TI Connect™
TI Connect™ CE
Applications
Accessories

TI Connectivity Cable
Unit-to-Unit link cables
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Trigonometric Patterns

Students use the unit circle to examine patterns in the six trigonometric functions.

Students are given the definitions of sine, cosine, and tangent and how they relate to the unit circle. Then, students are asked to use the unit circle to find the values of the functions at various angle measures to find patterns for each function.
Students will also explore secant, cosecant, and cotangent by finding the reciprocals of the earlier values.