Oswego City School District
Regents Exam Prep Center: Trigonometric Ratios
A collection of lessons and practice exercises on trigonometric ratios. Students will learn how to solve for an angle and for a side, and to apply trigonometry in setting up and solving word problems.
University of Saskatchewan (Canada)
University of Saskatchewan: Emr: Exercises in Math Readiness
The University of Saskatchewan offers this resource for the review of mathematical concepts that students need to enter university level math courses. Topics include mental arithmetic, algebra, geometry, trigonometry, exponential and...
Math2
Math2.org: Trigonometry Tables
Three trig tables are provided for student and teacher reference. The first table lists the sine, cosine, tangent, secant, cosecant, and cotangent values of all whole-number angles from 0 to 90. The radian equivalent (to four decimals)...
Math Open Reference
Math Open Reference: Tangent (Tan) Function: Trigonometry
Learn about the tangent with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Khan Academy
Khan Academy: Trigonometry: Evaluate Inverse Trig Functions
Given a sine, cosine, or tangent value, find the principle angle that has this value. In other words, find the arcsine, arccosine, or arctangent of that value. Students receive immediate feedback and have the opportunity to try questions...
Texas Instruments
Texas Instruments: The Light Side of Trigonometry
In this activity, students use the TI InterActive! software to develop a model that determines the time of sunrise and sunset and the number of daylight hours in Melbourne on any day of the year. They also determine how the position on...
Curated OER
Zona Land: Trigonometry, Right Triangles
This site provides information on sine, cosine, and tangent. Lengths of the sides are discussed and many diagrams/tables are shown.
Texas Instruments
Texas Instruments: Exploration of Trigonometry
Using TI Navigator, Cabri Jr and LearnCheck, students will explore how changing an angle in a triangle changes the ratio of the sides, and changing the sides can make changes an angle in a triangle. Students will then explore two...
CK-12 Foundation
Ck 12: Composition of Inverse Reciprocal Trig Functions
[Free Registration/Login may be required to access all resource tools.] On this site students learn about the composition of inverse trigonometric functions. Students read about inverse reciprocal functions, watch a video about the topic...
Sophia Learning
Sophia: Vectors and Scalars Part 2
A slide show presentation which shows how component parts can be used to determine a vector. It also introduces trigonometry functions to show how vectors can have rotational directions.
CK-12 Foundation
Ck 12: Algebra: Exponential Growth
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to analyze and graph exponential growth functions.
Johan Claeys
Math Abundance: Trigonometry: The Sine Function
Definition of a sine function. Range and period also are given. Graph of sine function given as well.
Math2
Math2: Trigonometric Graphs
Sketches of the graphs of the 12 "parent," trigonometry functions are given: sine, cosine, tangent, secant, cosecant, cotangent, arcsine, arccosine, arctangent, arcsecant, arccosecant, and arccotangent.
University of Vienna (Austria)
Univ of Vienna: Trigonometric Functions
An interactive tool to discover how the trig functions came to be. Applets are used in this interactive learning tool. Examples exercises are also given.
Interactive Mathematics
Interactive Mathematics: Graphs of Tan, Cot, Sec, & Csc
Several examples are presented that demonstrate how to graph the tan, cot, sec, and csc functions.
Other
Brown Math: A 10 Minute Trig Review
Looking for a 10-minute review of the major concepts of trigonometry? This site is a quick recap of degrees and radians, SOH CAH TOA, Pythagorean identities, and special right triangles are all found here.
CK-12 Foundation
Ck 12: Trigonometry: Secant, Cosecant, and Cotangent Functions
[Free Registration/Login may be required to access all resource tools.] Calculate the secant, cosecant, and cotangent functions using the sides of a triangle.
Analyze Math
Analyze Math: Special Angles on Unit Circle
Learners explore the special angles between 0 and 2 pi on a unit circle. The special angles can be used to solve trigonometry problems.
CK-12 Foundation
Ck 12: Trigonometry: Vertical Translations
[Free Registration/Login may be required to access all resource tools.] Define vertical translations of sine and cosine functions.
CK-12 Foundation
Ck 12: Trigonometry: Transformations of Polar Graphs
[Free Registration/Login may be required to access all resource tools.] How to alter graphs in polar coordinates by changing constants and/or functions.
Other
Technical Tutoring: Trigonometry: The Very Fast Review
This site is a quick review of the functions and identities in trigonometry. Very helpful site.
Interactive Mathematics
Interactive Mathematics: Derivatives of Csc, Sec, and Cot Functions
The derivatives for cosecant, secant, and cotangent functions are presented here. Several examples allow the user to practice finding the derivatives before seeing the solutions.
Other
Mecca: Review for Trigonometric Functions
A page of review problems on trigonometric functions. Answers are supplied.
Calculator Soup
Calculator Soup: Inverse Trigonometric Functions Calculator
This calculator will find the inverse trigonometric values for principal values in the ranges listed in the table.