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Assessment
EngageNY

End-of-Module Assessment Task - Geometry (module 2)

For Students 9th - 10th Standards
Increase the level of assessment rigor with the test of performance tasks. Topics include similar triangles, trigonometric ratios, Law of Sines, Law of Cosines, and trigonometric problem solving. 
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Assessment
CCSS Math Activities

Smarter Balanced Sample Items: High School Math – Target O

For Students 10th - 12th Standards
Trigger an increased understanding of trigonometry. Young mathematicians answer a set of questions that require finding trigonometric ratios using similarity and solving real-world problems involving trigonometry. The questions all come...
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Lesson Plan
Curated OER

Intro to Trigonometry

For Teachers 6th - 8th
After being introduced to the basic trigonometry functions, students calculate the height of school landmarks. They experiment with different angles to find the correct height.
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Worksheet
Curated OER

Limits of Trig Functions

For Students 9th - 11th
In this trigonometry activity, students solve 14 problems with trig functions by calculating and solving for the limit.
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Worksheet
Curated OER

Trigonometry

For Students 11th - 12th
In this trigonometry learning exercise, students find the missing angles for given triangles. They use the trigonometric ratios to solve the problems.
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Lesson Plan
Curated OER

Finding the Area of an Equilateral Triangle

For Teachers 9th - 11th Standards
The problem seems simple: find the area of the equilateral triangle whose sides are each length 1. In fact, this same problem is solved in 8th grade, addressing a different Common Core standard, using the formula for area of a triangle...
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Lesson Plan
EngageNY

Inverse Trigonometric Functions

For Teachers 11th - 12th Standards
Build on the understanding of finding angles using trigonometric ratios. Pupils develop the definitions of inverse trigonometric functions by restricting their domains in the 13th lesson of a 16-part series. They use inverse functional...
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Worksheet
Curated OER

Differentiation Rules Math 21A and Trig Identities

For Students 11th - Higher Ed
In this math learning exercise, students practice solving the problems using the listed differentiation rules and trigonometric identities.
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Worksheet
Curated OER

Trig Identities and Antiderivatives

For Students 11th - Higher Ed
In this math worksheet, students practice solving the problems that are related to the concepts of identities and antiderivatives.
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Worksheet
Curated OER

Magic Square Trig Identities

For Students 12th
In this trig worksheet, 12th graders review their trig identities using a table. They answer questions 1-16 as given clues to find the answer to the correct identity.
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Lesson Plan
Curated OER

Geometry Exploration Basic Trig Functions

For Teachers 10th
Tenth graders solve for missing sides on a triangle using the Pythagorean Theorem. In this geometry lesson, 10th graders are introduced to basic trigonometry functions as they solve problems of right triangles. They discuss the formulas...
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Worksheet
Curated OER

Trig Cut Ups

For Students 9th - 11th
In this trigonometry worksheet, students rearrange 16 squares to a form one large square in which all of the trig identities match up. There is an answer key.
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Lesson Plan
Curated OER

Trigonometry

For Teachers 10th - 12th
Students investigate angles converting them from radians to degrees. In this trigonometry lesson, students work with angles and the six different trig ratios. They graph the functions representing each trig functions and identify the...
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Worksheet
Curated OER

Trigonometry Sum and Difference Identities

For Students 9th - 11th
In this algebra learning exercise, students solve a word problem using trigonometric identities. They solve problems about a love triangle. There is an answer key.
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Lesson Plan
Curated OER

Derivatives of the 6 Inverse Trig Functions

For Teachers 11th - 12th
Student list the 6 trig functions and identify their inverse functions. In this trigonometry lesson, students derive the inverse trig functions using the derivative. They solve problems using the inverse functions through substitution.  
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Worksheet
Curated OER

Review of Trig Ratios

For Students 11th - Higher Ed
In this trigonometric ratios worksheet, students solve and complete 10 various types of problems. First, they write the degrees listed in radian measure. Then, students find the exact ratios for each equation. They also find the value of...
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Worksheet
Curated OER

Functions, Domains and Composites

For Students 11th - 12th
In this functions, domains and composites worksheet, students solve and complete 23 various types of problems. First, they graph the given trigonometric function on a coordinate plane. Then, students label three points on each graph and...
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Worksheet
Curated OER

Trigonometric Graphs

For Students 11th
In this trigonometric graphs worksheet, 11th graders solve and complete 16 different problems. First, they determine the period of the given functions. Then, students describe the period, amplitude, and vertical shift of each function....
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Lesson Plan
Curated OER

The Tangent Ratio

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

Finding Derivatives of Twenty Trig Functions

For Students 12th - Higher Ed
For this derivatives worksheet, students take the derivative of fifty various trigonometric functions.  These fifty problems vary in difficulty.
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Worksheet
Curated OER

Trigonometry Worksheet: Trigonmetric Equations (2)

For Students 10th - 11th
In this trigonometry equations activity, students solve trigonometric equations containing secants.  This one-page activity contains one problem.  Answers are provided.
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Lesson Plan
Curated OER

Exploration of Trigonometry

For Teachers 6th - 12th Standards
Learners explore how changing an angle in a triangle changes the ratio of the sides. They also explore how changing the sides can make changes to an angle in a triangle. Finally, they determine how two different pairs of sides, in the...
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Interactive
CK-12 Foundation

Basic Trigonometric Functions: Ladder Length

For Students 9th - 12th Standards
Climb the ladder to trigonometry. The interactive introduces trigonometric ratios and finding lengths of sides of right triangles created by a ladder and a building. Learners use the interactive to create triangles by moving the top of...