Worksheet
Curated OER

Triangles

For Students 6th - 10th
In this triangles learning exercise, students solve for the missing angles and missing sides on the triangles given. Students complete 12 problems total.
Worksheet
Curated OER

Complex Analysis: Polar & Exponential Forms

For Students Higher Ed
For this polar and exponential form worksheet, students use Euler's Formula to write complex numbers in exponential form. They write numbers in rectangular form. This two-page worksheet contains seven multi-step problems.
Lesson Plan
Curated OER

A Second View of Polar Coordinates

For Teachers Higher Ed
In this polar coordinates worksheets, students change ordered pairs from rectangular form to polar form. They plot and label points and identify alternative coordinate pairs for given points. There are approximately 20 problems on this...
Worksheet
Curated OER

New York State Testing Program-Grade 8

For Students 8th
In this eighth grade worksheet, 8th graders solve problems that represent the grade level expectations for mathematics in New York State.  The twenty-four page worksheet contains sixteen free response questions.  Answers are...
Worksheet
Curated OER

Trigonometry Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students solve word problems. They find the height and distance of triangular measurements. They identify missing angles using triangular properties. There are 10 questions.
Worksheet
Curated OER

Precalculus Test 3 (4.4-4.5)

For Students 10th - 12th
In this precalculus test, students select the best answer from 8 multiple choice problems. They solve 4 short answer problems and graph one cycle of each of four equations.
Lesson Plan
Curated OER

That Mu You Do

For Teachers 11th - 12th
Students discussion frictional force, kinetic friction, and static friction and the role each plays in acceleration and velocity in relationship to a car and the road on which it is traveling. Students complete lesson answering review...
Activity
University of Vienna (Austria)

The Graphs of Sin, Cos, and Tan Maths Online

For Students 9th - 10th
This applet allows the user to create the graphs of sin, cos, and tan by moving a scroll bar. The user can watch the unit circle and the graph simultaneously to see how the two are related. The user may also choose to see the angle...
Activity
Texas Instruments

Texas Instruments: Sin, Cos, and Tan of Right Triangles

For Teachers 9th - 10th Standards
In this activity, students explore a right angled triangle and its trigonometric concepts. They investigate the trigonometric ratios for the angles of the triangle.
Activity
Interactive Mathematics

Interactive Mathematics: Sine, Cosine, Tan & Reciprocals

For Students 9th - 10th Standards
The definitions of the six trig ratios are presented here, along with several examples of how to determine the ratios given 2 or more sides of a right triangle.
Handout
Math Words

Math Words: Cofunction Identities

For Students 9th - 10th Standards
This MathWords.com site, which is a glossary of math terms, shows the relationship in radians and degrees between sin and cos, tan and cot, and sec and csc.
Activity
Interactive Mathematics

Interactive Mathematics: Derivatives Sin, Cos, & Tan Function

For Students 9th - 10th
Several formulas are given for taking the derivatives of trigonometry functions. Several examples are presented to demonstrate the process of finding these derivatives. The examples allow the user to practice before seeing the solution.
Activity
Texas Instruments

Texas Instruments: Exploring Functions With Cas

For Teachers 9th - 10th Standards
In this activity students use the CAS tool to explore sin, cos, and tan functions. They expand the functions and find the domain. They also prove the conjectures.
Activity
Texas Instruments

Texas Instruments: Right Triangle Trig

For Teachers 9th - 10th Standards
This is a way to use the TI-Navigator to check for an understanding of sin, cos, and tan before you move onto word problems.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Tf Finding Trig Values

For Teachers 9th - 10th
For this task, students are give values for sin, cos, or tan, and use them to find the missing value as well as the quadrant of the angle. Aligns with HSF-TF.C.8.
Handout
Math Is Fun

Math Is Fun: Introduction to Trigonometry

For Students 9th - 10th Standards
Students are introduced to concepts taught in trigonometry. The tutorial consists of notes and examples.
Handout
Purple Math

Purplemath: Solving Simple (To Medium Hard) Trig Equations

For Students 9th - 10th Standards
Introduces techniques for solving trigonometric equations. Provides worked examples of solving some simpler to medium-hard equations.
Activity
eFunda

E Funda: Multiple Angle

For Students 9th - 10th Standards
At this site from eFunda you can scroll to the middle of the page for a listing of multiple angle formulas for cos, sin, and tan.
Activity
Wolfram Research

Wolfram Math World: Trigonometric Functions

For Students 9th - 10th Standards
This site from MathWorld.com is a site full of links to very extensive documentation on the trigonometric functions.
Interactive
Government of Alberta

Learn Alberta: Math Interactives: Exploring Trig Ratios

For Students 6th - 8th
Investigate the cosine, sine, and tangent ratios of trigonometry using this interactive Learn Alberta math resource. Students will use these ratios to determine a right triangle's unknown side or angle. Be sure to follow the link to the...
Activity
University of Saskatchewan (Canada)

University of Saskatchewan: Trigonometric Functions

For Students 9th - 10th Standards
This site examines the six trigonometric functions from a right triangle point of view. Provides information, examples, and lots of exercises for understanding.
Handout
University of Guelph

University of Guelph: Trigonometry Tutorial

For Students 9th - 10th Standards
A guide to calculating trigonometric functions.
Activity
Mathematics Archives

Math Archives: Visual Calculus: Reduction Formulas

For Students 9th - 10th
This tutorial presents a series of trigonometric integrals to solve using recursion or reduction formulas. Click Solution next to each formula and a popup screen provides the solution.
Graphic
Curated OER

Zona Land: Trigonometry, Right Triangles

For Students 9th - 10th Standards
This site provides information on sine, cosine, and tangent. Lengths of the sides are discussed and many diagrams/tables are shown.

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