### We found 235 resources with the concept Trigonometry

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Lesson Planet

#### Trigonometry Work Problems (Part 2)

In this part two video, Sal finishes the trigonometric word problem of the wayward ship captain. He wisely continues the algebra work on the problem before finally turning to his calculator for the very last calculation.

Lesson Planet

#### The unit circle definition of trigonometric function

In this video, Sal shows how the sine and cosine of an angle are defined on the unit circle. He inscribes a 30-60-90 triangle in the unit circle and explains how one can use SOH-CAH-TOA to find the coordinates on the circle.

Lesson Planet

#### Trigonometry Word Problems (Part 1)

Sal starts to solve a trigonometric word problem of a wayward ship captain who veers off course and once aware of his predicament, needs to know how far he is from his destination. Instead of using the Law of Cosines in his solution, Sal...

Lesson Planet

#### Radians and Degrees

After defining a radian, Sal demonstrates one example of converting from degrees to radians and another example of converting radians to degrees. This video would be a good review for learners who have had prior exposure to this topic,...

Lesson Planet

#### Fun Trig Problem

If solving trigonometric equations is your idea of fun, then this video is correctly titled. Here Sal uses trigonometric identities, the quadratic formula, and inverse trigonometric functions to solve a trigonometric equation sent in by...

Lesson Planet

#### Fun Trig Problem

Lesson Planet

#### Ferris Wheel Trig Problem (part 2)

Sal continues the Ferris wheel problem in a previous video by graphing the function between zero and 30 seconds.

Lesson Planet

#### Ferris Wheel Trig Problem

The next time you are at an amusement park you may want to consider all the interesting math problems you could do! Using trigonometric ratios, some logic and algebra, Sal solves a problem in this video of finding a person's height off...

Lesson Planet

#### Proof: Law of Sines

In this video, Sal proves the Law of Sines by using the SOH-CAH-TOA model and setting up equivalent ratios.

Lesson Planet

#### Law of Cosines

Sal derives the Law of Cosines using a method similar to the wayward ship captain word problem he solves in another video. This video provides a good review of using the SOH-CAH-TOA model, the Pythagorean Theorem, some of the basic trig...

Lesson Planet

#### Trigonometry work problems (part 2)

In this part 2 video, Sal finishes the trigonometric word problem of the wayward ship captain. He wisely continues the algebra work on the problem before finally turning to his calculator for the very last calculation.

Lesson Planet

#### Trig Transformations

Learners investigate trigonometric function. In this Algebra II lesson plan, students explore functional notation and transformational graphing of trigonometric functions.

Lesson Planet

#### Basic Trigonometric Limits: Evaluating Limits of tan(x)

Chase a periodic moving limit. Learners graphically determine the limit of the tangent function at different input values. Using sliders, pupils find out whether the tangent function approaches the same value from the left and the right....

EngageNY

#### End-of-Module Assessment Task: Pre-Calculus Module 4

Challenge your scholars to show what they know about the Law of Sines, Law of Cosines, and inverses. The six-question assessment is the last in a series of 16. Pupils find the area of triangles and show that the Law of Sines and Law of...

EngageNY

#### Modeling with Inverse Trigonometric Functions 1

Where should I stand to get the best view? Pupils use inverse trigonometric functions to determine the horizontal distance from an object to get the best view. They round out the lesson plan by interpreting their answers within context.

EngageNY

#### Inverse Trigonometric Functions

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...

EngageNY

#### Putting the Law of Cosines and the Law of Sines to Use

Use the Law of Cosines and the Law of Sines to solve problems using the sums of vectors. Pupils work on several different types of real-world problems that can be modeled using triangles with three known measurements. In the process,...

EngageNY

#### Law of Cosines

Build upon the Pythagorean Theorem with the Law of Cosines. The 10th part of a 16-part series introduces the Law of Cosines. Class members use the the geometric representation of the Pythagorean Theorem to develop a proof of the Law of...

EngageNY

#### Modeling with Inverse Trigonometric Functions 2

Use inverse trigonometric functions to work with ramps, rabbits, and Talladega. The class models real-world situations with trigonometric functions and solves them using inverses in the 15th installment of a 16-part series. Pupils solve...

EngageNY

#### Revisiting the Graphs of the Trigonometric Functions

Use the graphs of the trigonometric functions to set the stage to inverse functions. The lesson reviews the graphs of the basic trigonometric functions and their transformations. Pupils use their knowledge of graphing functions to model...

EngageNY

#### Law of Sines

Prove the Law of Sines two ways. The ninth segment in a series of 16 introduces the Law of Sines to help the class find lengths of sides in oblique triangles. Pupils develop a proof of the Law of Sines by drawing an altitude and a second...

Lesson Planet

#### Pixar: The Math Behind the Movies

When will we ever use this? A Pixar movie maker explains to students how math is used in the creation of animated films. The movie maker discusses the importance of coordinate planes, transformations and translations, and trigonometry.

Lesson Planet

#### Finding the Area of an Equilateral Triangle

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...

Lesson Planet

#### What Does the Graph of the Sine Function Look Like?

Using the unit circle and the values of _ at 0, ¹/2, ¹, and 3¹/2, the instructor shows how to construct the sine graph by translating the y-coordinate of the unit circle to the graph. She then looks at the domain, range, amplitude,...