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Assessment
Illustrative Mathematics

Foxes and Rabbits 2

For Students 9th - 12th Standards
The fox population chases the rabbit population. Groups model the populations of foxes and rabbits with two trigonometric functions. Individuals graph both trigonometric models on the same graph, and then teams determine an explanation...
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Lesson Plan
EngageNY

Special Triangles and the Unit Circle

For Teachers 11th - 12th Standards
Calculate exact trigonometric values using the angles of special right triangles. Beginning with a review of the unit circle and trigonometric functions, class members use their knowledge of special right triangles to find the value of...
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Worksheet
Curated OER

Pre-Calculus Test Chapter 5: Identities

For Students 10th - 12th
In this identities instructional activity, students match equivalent expressions containing sine, cosine, and tangent.  They solve equations, find intervals, and determine all solutions to an interval.  Students prove given identities. ...
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Interactive
Curated OER

Trigonometry Formula Worksheet

For Students 10th - 12th
In this trigonometry instructional activity, students solve right triangle problems.  They find the sine, cosine and tangent of given triangles.  This on-line, interactive instructional activity contains 6 problems.  Answers are provided.
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Worksheet
Curated OER

Algebra Skills Sections 23

For Students 9th - 12th
In this algebra skills worksheet, high schoolers solve/simplify 20 short answer problems. Students solve/simplify quadratic, absolute value, exponential, logarithmic, trigonometric, and radical equations/expressions.
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Worksheet
Curated OER

Trigonometry Review

For Students 11th - 12th
In this trigonometry worksheet, students solve trigonometric equations, prove trigonometric identities, and graph trigonometric functions. The four page worksheet contains sixteen questions. Answers are not included.
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Assessment
Concord Consortium

Not So Identities

For Students 11th - 12th Standards
Don't compromise the identity. Given pairs of equations, scholars determine whether the equations are true for the same set of values. They explain their reasoning, considering whether it's possible to combine the equations into an...
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Worksheet
Curated OER

Trigonometry Triangles

For Students 11th
In this trig worksheet, 11th graders investigate the 6 trigonometry identities and their cofunctions. They use them to solve trig problems as related to right triangles. There are 5 questions with an answer key.
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Lesson Plan
EngageNY

Graphing the Tangent Function

For Students 10th - 12th Standards
Help learners discover the unique characteristics of the tangent function. Working in teams, pupils create tables of values for different intervals of the tangent function. Through teamwork, they discover the periodicity, frequency, and...
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Lesson Plan
Curated OER

Trigonometric Functions of Special Angles

For Teachers 9th - 12th
High schoolers explore the concept of the six trigonometric functions, places where the functions can be utilized, and apply these functions to several electrical application problems.
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Worksheet
Curated OER

Trigonometric Functions

For Students 11th
In this trigonometric functions activity, 11th graders solve 10 different problems that include applying various trigonometric functions in each. First, they determine the nearest degree that contains the measure of an acute angle formed...
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Worksheet
Curated OER

Trigonometric Equations

For Students 11th
In this trigonometric equations worksheet, 11th graders solve 10 different problems that include trigonometric functions. First, they order the equation in terms of one equation and one angle. Then, students write the equation as one...
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Worksheet
Curated OER

Pythagorean Identities

For Students 11th
In this Pythagorean identities learning exercise, 11th graders solve 10 different problems that include applying various Pythagorean identities in each. First, they determine the values of tangent, secant, cosecant, and cosine given the...
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Worksheet
Curated OER

Inverse Trig

For Students 11th - Higher Ed
In this inverse trig worksheet, students solve and complete 24 various types of problems. First, they evaluate each of the trigonometric inverses shown. Then, students find x and y in each trigonometric derivative. They also find the...
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Worksheet
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University of Adeaide

Basic Trigonometry and Radians

For Teachers 9th - 12th Standards
A fabulous set of examples and problems that introduce basic trigonometry concepts, this packet is set apart by the care it takes to integrate both radians and degrees into the material. After defining radians, the author demonstrates...
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Lesson Plan
Curated OER

Trig Review

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

Inverse Trigonometric Functions (Review)

For Teachers 11th - Higher Ed
Students discuss the importance of inverse functions and derivatives. In this calculus lesson, students analyze inverse trig functions by solving for missing angles. They graph the functions and discuss integration by parts.
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Worksheet
Curated OER

Trigonometry: Labeling, Formulas, Solving

For Students 11th - 12th
In this math activity, students label sides of right triangles as opposite, hypotenuse, and adjacent to the labeled angle. On the second page of the activity, kids label the part of the right triangle marked with a question mark and...
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Worksheet
Curated OER

Trigonometry

For Students 10th - 12th
For this right triangles worksheet, students use trigonometric ratios to determine the length of a side of a triangle or a missing angle measurement.  This two-page worksheet contains 20 problems.
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Worksheet
Curated OER

Using Trinonometry to Find Angle Measures

For Students 10th - 12th
In this trigonometric ratios worksheet, students find the missing angle of 20 triangles by using sine, cosine and tangent ratios. Students compute the angle measurement of given ratios for six problems.
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Worksheet
Curated OER

Trigonometry Puzzle

For Students 8th - 12th
In this trigonometry worksheet, students solve for the degree or the ratio in 48 questions using the 6 basic trigonometric functions. 
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Worksheet
Curated OER

Trigonometry Homework

For Students 10th - 12th
In this right angles activity, students use trigonometric ratios to determine the length of a missing side or a missing angle of a right triangle.  This two-page activity contains 19 problems.
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Worksheet
Curated OER

Trigonometry Ratios in Right Triangles

For Students 10th
In this trigonometry ratios in right triangles worksheet, 10th graders solve 10 different trigonometric ratios that apply to right triangles. First, they define a trigonometric ratio and its three most common ratios, sine, cosine, and...
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Lesson Plan
Curated OER

Properties of Trigonometric Functions

For Teachers Higher Ed
For this properties of trigonometric functions worksheet, students complete 4 sections consisting of 15 problems involving problem solving using Pythagorean and trigonometric identities and sketching functions..