Worksheet
Curated OER

Sequences

For Students 11th - 12th
For this trigonometry worksheet, students write formulas for sequences using a given pattern. There are 12 questions with an answer key.  
Worksheet
Curated OER

Trigonometric Table

For Students 11th
In this trigonometry instructional activity, 11th graders convert between degrees and radians using a conversion chart. They use the unit circle to help visualize the relationship between radians and degrees. There is an answer key.
Worksheet
Curated OER

Trigonometric Identities

For Students 11th - 12th
For this trigonometry worksheet, students solve and analyze the reciprocal, quotient, Pythagorean and Cofunction Identities. They also discuss sum and difference identities, double angle and half angle identities.
Worksheet
Curated OER

Trig Applications

For Students 9th - 12th
In this trig applications worksheet, students solve 6 word problems about trigonometry.  Students determine wind speed, angle of elevation and depression, and speed of airplanes using trigonometric functions.
Lesson Plan
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Trig Review

For Teachers 12th
Twelfth graders review the 6 identities of trigonometry. In this trig lesson, 12th graders review the importance of the right triangle as it relates to sine, cosine and tangent. They review the basic trig identities and how it relates to...
Lesson Plan
Curated OER

Integrals involving Trig Substitution

For Teachers 12th
Twelfth graders solve derivatives using trig substitution. In this trigonometry lesson, 12th graders integrate integrals by substituting trig values into the equations. They review detailed examples before solving problems on their own.
Worksheet
Curated OER

Ratios Involving the Hypotenuse

For Students 10th
In this trigonometry activity, 10th graders calculate the ratios as it relates to the hypotenuse of the triangle. They find the missing leg, angle or hypotenuse. There are 6 questions with this activity.
Lesson Plan
Curated OER

Trigonometric Functions of Acute Right Triangles

For Teachers 9th - 11th
Students derive the six trigonometric functions. In this trigonometry lesson, students show their understanding of trigonometric functions as they relate the right triangles. They find the missing angles and side use trig ratios of sine,...
Worksheet
Curated OER

Angles and Angle Measure

For Students 10th - 12th
In this trigonometry worksheet, students convert between degrees and radians. They use the unit circle to identify the measure of angles. There are 28 questions with an answer key.
Worksheet
Curated OER

Multiple Angle Formula

For Students 10th - 12th
In this trigonometry worksheet, students apply the concept of multiple angle formula to solve problems dealing with trigonometric properties. There are 2 questions with an answer key.
Lesson Plan
Curated OER

The Tangent Ratio

For Teachers 8th - 11th
Learners calculate the tangent ratio given a right triangle. For this trigonometry lesson, students use a right triangle and the Pythagorean Theorem to solve problems.
Lesson Plan
Curated OER

Symmetric Secant

For Teachers 9th - 12th Standards
Mathematicians use a symmetric secant line to prove the derivative at a point. In this trigonometry lesson plan, learners create secant lines on the navigator to analyze the derivative. They move the lines around and make observations.
Worksheet
Curated OER

Applied Trigonometry Problems Day 2

For Students 9th - 10th
In this geometry instructional activity, students apply right triangle trigonometry to find missing distances or angles in real life examples involving angles of depression or elevation. The four page instructional activity contains...
Worksheet
Curated OER

Algebra and Trigonometry - Week 3: Story Problems

For Students 11th - Higher Ed
In this story problem learning exercise, students read story problems, write equations, and solve. They use the law of sines, the law of cosines, the distance formula, and rates to solve problems. This two-page learning exercise contains...
Interactive
Curated OER

Five Find the Unknown Angle Interactive Problems

For Students 10th - Higher Ed
In this unknown angle worksheet, students use trigonometry functions in five problems to find the unknown angles.  Students may check their solutions and receive hints by using the "Check" and "Hint" button found at the bottom of...
Worksheet
Curated OER

Inverse Trigonometry

For Students 11th - Higher Ed
In this math learning exercise, students graph each function while focusing upon finding the domain and range of each one. They also find the exact values using sine, cosine, and tangent.
Lesson Plan
Curated OER

High School Examination: Algebra 2/Trigonometry

For Teachers 10th - 12th
In this high school worksheet, students solve problems involving angles, functions, square roots, and sequences.  They read word problems, write equations, and then solve them.  This 28-page worksheet contains 39 problems. 
Worksheet
Curated OER

Evaluating Trig equations and Solving Trig Identities

For Students 9th - Higher Ed
In this trigonometry worksheet, learners match trig expressions to their exact value, evaluate trig equations, graph trig equations, and prove trig identities. There are 61 questions.
Activity
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Curated OER

Access Ramp

For Teachers 9th - 12th Standards
Just about every public building that your students are familiar with has an access ramp which complies with ADA requirements. As it turns out, designing such a ramp is an excellent activity to incorporate slope, the Pythagorean Theorem,...
Worksheet
Curated OER

Displacement vs. Distance Worksheet

For Students 9th - 12th
Displacement is a foundational concept for physics pupils. If they are having trouble discerning it from distance, this activity can help clear things up. The first page is essentially a piece of graph paper. It has a compass rose and a...
Lesson Plan
EngageNY

Unknown Angles

For Students 9th - 10th Standards
How do you solve an equation like trigonometry? Learners apply their understanding of trigonometric ratios to find unknown angles in right triangles. They learn the meaning of arcsine, arccosine, and arctangent. Problems include...
Lesson Plan
Curated OER

Roll It! Creating an Entrance Ramp

For Teachers 9th - 12th
High schoolers explore the concept of triangles.  In this triangles lesson, students are to propose a plan for a ramp at their school.  High schoolers use the Pythagorean Theorem and trigonometry to determine the length,...
Lesson Plan
Curated OER

Sine

For Teachers 10th - 12th
In this sine worksheet, students use the trigonometry equation to find the sine of triangles. Students solve the sine for 10 triangle problems.
Lesson Plan
Curated OER

Law of Cosines

For Teachers 7th - 9th
Students model scenarios using functions and their properties. In this trigonometry lesson, students calculate the angles of sine, cosine and tangent. They perform operation using a calculator.

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