# Angle Teacher Resources

Find Angle lesson plans and worksheets
Showing 367 resources
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Lesson Planet Curated

#### Geometry Unit 7: Right Triangles

For Students 9th - 12th Standards
Six lessons comprise the Geometry Unit 7: Right Triangles unit module. In the first lesson, pupils review the Pythagorean Theorem and determine how to use the converse to determine whether a triangle is right, obtuse, or acute. Next,...
29 Items in Unit
Lesson Planet Curated

#### Geometry Unit 9: Area of Polygons

For Teachers 9th - 12th Standards
Six lessons make up the Geometry Unit 9: Area of Polygons unit module. Pupils review the formulas for finding the area of parallelograms and triangles. They apply previous learning of trigonometric ratios and the Pythagorean Theorem to...
12 Items in Course
Lesson Planet Curated

#### Flipped Math: Geometry

For Students 9th - 12th Standards
Imagine taking a complete geometry course remotely! Eleven units make up the My Geometry course. Each unit follows the Flipped-Mastery cycle of learning, divided into two semesters. Pupils watch and take notes on a video that details the...
42 Items in Unit
Lesson Planet Curated

#### TeachEngineering: Photovoltaic Efficiency

For Teachers 9th - 12th Standards
Many factors affect the power output of photovoltaic (PV) solar panels. Four lessons and activities provide young engineers with the background information they need to design, build, and test photovoltaic systems.
eBook
Schoolcraft College

#### Trigonometry

For Teachers 9th - 12th Standards
This trigonometry textbook takes the learner from a basic understanding of angles and triangles through the use of polar coordinates on the complex plane. Written by a mathematician-engineer, examples and problems here are used to...
Instructional Video5:12
Curated OER

#### How Do You Solve a Problem Using an Angle of Elevation?

For Teachers 8th - 11th
In this problem you are given an angle of elevation and one side of a right triangle to find a missing side. Watch the instructor explain how to use the tangent ratio formula to solve this problem.
Instructional Video2:51
Curated OER

#### Trigonometry work problems (part 2)

For Students 11th - Higher Ed
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 Plan
Virginia Department of Education

#### Special Right Triangles and Right Triangle Trigonometry

For Teachers 9th - 11th Standards
Right triangles are so special! Use special right triangles to discover the trigonometric ratios. Pairs construct special right triangles and find the values of the ratios of the sides. In the process, they discover the ratios stay the...
Instructional Video2:57
Curated Video

#### Trigonometry Word Problems: Lesson

For Students 9th - 11th Standards
Look up or down to find the answer.  A segment of an extensive playlist on geometry introduces angle of depression and elevation to find indirect measurements. Using trigonometric ratios, the presentation finds missing sides and angles...
Lesson Plan
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Teach Engineering

#### Solar Angles and Tracking Systems

For Teachers 9th - 12th Standards
The sun will continue to rise in the east and set in the west, no matter what. The first lesson in a series of eight introduces the class to solar angles. It makes connections between a person's latitude and the angle of position of the...
Instructional Video3:21
Curated OER

#### How Do You Find the Cosine of an Angle in a Right Triangle?

For Teachers 7th - 11th
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find cosine(A) in the given right triangle. Use the ratio of the adjacent side divided by the hypotenuse to find cos(A). The instructor...
Instructional Video3:13
Curated OER

#### How Do You Find the Tangent of an Angle in a Right Triangle?

For Teachers 6th - 11th
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find tangent(A) in the given right triangle. Use the ratio of the opposite side divided by the adjacent side to find tan(A). The...
Instructional Video5:48
Curated OER

#### How Do You Solve a Problem Using an Angle of Elevation?

For Teachers 6th - 12th
One given angle and one given length equals an unknown height. What? Here's a word problem that can be solved given two pieces of information by using the correct formula. Watch the instructor explain how to use the tangent ratio formula...
Handout
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Curated OER

#### Math Handbook: Trigonometry

For Students 9th - 12th Standards
You'll be spinning in unit circles once you read through this jumbo-sized resource of everything you need to know about trigonometry. Each page has color-coded examples with explicit directions that detail the problems and formulas.
Worksheet
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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...
Instructional Video24:21
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Flipped Math

#### Intro to Trigonometry

For Students 9th - 12th Standards
Expand trigonometric ratios beyond right triangles. Pupils start with a review of trigonometric ratios and then take a look at angles in standard position to determine their measurements. Scholars discover how to find coterminal angles...
Interactive
CK-12 Foundation

#### Double Angle Identities: Ferris Wheel

For Students 10th - 12th
Use a Ferris wheel to soar to new heights of understanding on double angle identities. Here is an interactive that applies an example of a Ferris wheel to show how doubling the angle does not double the value of a trigonometric ratio....
Instructional Video2:51
Curated OER

#### Trigonometry Work Problems (Part 2)

For Students 10th - 12th
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.
Instructional Video9:57

#### Trigonometry Word Problems (Part 1)

For Students 10th - 12th
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...
Instructional Video7:56
Corbett Maths

#### Trigonometry – Missing Angles

For Students 10th - 12th Standards
So what's your angle? Scholars watch a brief video that looks at how to find the missing angles of a right triangle using trigonometry. The narrator explains inverse trigonometric functions and shows how to apply them when solving for...
Worksheet
Curated OER

#### Trigonometry

For Students 10th
In this geometry worksheet, 10th graders solve problems that are based on the right triangle trigonometry and the special right triangles. The three page worksheet contains twelve questions.  Answers are not included.
Lesson Plan
Curated OER

#### Small Angle Calculations

For Teachers 4th - 7th
Young scholars work with circles, angles and estimating angles in the night sky. In this circles and angles lesson, students practice measuring a degree using the circumference of a circle and apply the degree to determine a way to use...
Instructional Video9:04
Curated OER

#### The unit circle definition of trigonometric function

For Students 10th - 12th
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.
Instructional Video3:22
Curated Video

#### SOHCAHTOA - Finding Missing Angles

For Students 9th - 12th Standards
Apply the trig ratios to find unknown angle measures. Learners review the side and angle relationships in right triangles and then apply the ratios to find the angle measures. The video shows several worked-out examples applying all...