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333 reviewed resources for angles and the unit circle

EngageNY

EngageNY Geometry Module 5: Circles With and Without Coordinates

For Teachers 9th - 12th Standards
A comprehensive 21-lesson math unit challenges high schoolers to wrap their heads around the geometry of circles. Building on a prior understanding of similarity and congruence, length and area, and the properties of geometric figures,...
18:16
Lesson Planet

How to Remember the Unit Circle

For Students 11th - Higher Ed Standards
Seeing structure in the patterns is key to understanding the unit circle, and it takes time to become comfortable with those relationships. The video gives learners access to repeated instruction to allow time to develop those patterns. 
Lesson Planet

Trigonometric Functions: The Unit Circle

For Teachers 10th - 12th Standards
This comprehensive problem and note set walks the class through a large part of simplifying trigonometric expressions using the unit circle and identities. From identifying angles to applying appropriate trigonometric ratios, problems...
Lesson Planet

The Unit Circle

For Teachers 10th - 12th Standards
You and your learners will enjoy having a nicely organized, typed up unit circle, all filled in with degrees and radians as well as cartesian coordinates. 
Lesson Planet

Round and Round the Unit Circle

For Teachers 9th - 12th Standards
Your young trigonometry learners will analyze and discover the many valuable relationships on the Unit Circle in this very rich collaborative task. Using co-terminal and reference angles in degrees and radians, learners find and label...
9:04
Lesson Planet

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.
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...
1 In 1 Collection
Lesson Planet

Exercise Set 4.3: Unit Circle Trigonometry

For Students 9th - 12th
For this unit circle worksheet, students answer 90 short answer questions about the unit circle.  Students sketch angles given a radian measure.  Students find the trigonometric values of various angles on the unit circle.
Lesson Planet

Unit Circle: Special Angles—Just Know One

For Students 9th - 12th Standards
It's all about the patterns! Young scholars learn that the unit circle repeats itself in all four quadrants. Using these patterns, they evaluate the sine, cosine, and tangent of special angles.
Lesson Planet

Reference Angles and Angles in the Unit Circle: Exploring Reference Angles

For Students 10th - 12th Standards
A steal of a deal — get four angles for the value of one. An interactive resource allows individuals to visualize all four angles that have the same reference angle. Pupils answer questions by using the interactive to create the...
Lesson Planet

The Unit Circle

For Teachers 9th - 12th Standards
It's not just any circle—it's the unit circle. The fourth lesson in the series is an introduction to the famous unit circle. While working through a series of activities, young scholars learn the components of the unit circle and how to...
1 In 1 Collection
Lesson Planet

Unit Circle

For Teachers 11th - 12th
In this Pre-Calculus worksheet, students solve problems involving angles and the unit circle.  The four page worksheet contains a combination of twenty multiple choice and free response problems.  Answers are provided. 
Lesson Planet

Unit Circle: Medieval Castle Defense

For Students 10th - 12th Standards
Who needs a plan — let trigonometry protect you! Pupils determine the angle of an approaching enemy to a village wall. The scholars determine the exact value of trigonometric functions for the angle. Class members use trigonometry to...
Lesson Planet

Exploring the Unit Circle

For Teachers 9th - 12th
Students explore the concept of the unit circle.  In this unit circle instructional activity, students record the x and y values on the unit circle at various angle measures.  Students graph their results on the coordinate plane and...
Lesson Planet

Method for Remembering the Coordinates of the Points in the First Quadrant on the Unit Circle

For Students 11th - Higher Ed
In this Unit Circle worksheet, students explore a method to help remember the coordinates of the points in the first quadrant on the unit circle.  Answers are provided as well as a completed unit circle.
Lesson Planet

The Unit Circle

For Teachers 11th - 12th
Young scholars play a game based on the unit circle used in trigonometry. In this lesson plan on the unit circle, students draw a card a perform a given task including measuring degrees, radians, locating coordinates and finding the...
1 In 1 Collection
EngageNY

From Circle-ometry to Trigonometry

For Students 10th - 12th Standards
Can you use triangles to create a circle? Learners develop the unit circle using right triangle trigonometry. They then use the unit circle to evaluate common sine and cosine values.
Lesson Planet

Graphing in Circles

For Teachers 9th - 12th
Students explore the concept of the unit circle.  In this unit circle lesson, students create a scatter plot of the sine, cosine, and tangent function using data from the x and y values on the unit circle.  Students generalize the...
Lesson Planet

Periodic Functions, Domain and Range

For Teachers 9th - 11th Standards
Students identify the properties of a unit circle. For this trigonometry lesson, students analyze periodic functions using trigonometric ratios. They identify the domain and range of each function.
Lesson Planet

The Unit Circle and Special Triangles

For Teachers 9th - 11th Standards
Students identify the properties of right triangles. In this geometry lesson, students identify the different ratios and parts of a Unit Circle. They use the unit circle as an aid in finding parts of a special triangle and trig identities.
Lesson Planet

Radian Measure: Unit Circle Conversions

For Students 10th - 12th
Individuals investigate the relationship between radian and angle measurements by using an interactive to find the angle measurement for given radian measures. Users answer questions to convert between the two measurements.
1 In 1 Collection
Lesson Planet

Unit Circle Review

For Teachers 10th - 12th Standards
Young scholars relate properties of right triangles to the unit circle. In this trigonometry lesson, students  identify the different ratios of a right triangles and use it create the different parts of a Unit Circle. They find the six...
Lesson Planet

Unit Circle

For Teachers 9th - 10th Standards
Students identify the ratios of the unit circle. In this geometry lesson, students apply properties of the right triangle to find the ratios of a unit circle. They identify the trigonometric identify of sine, cosine and tangent.
Lesson Planet

Unit Circles

For Teachers 9th - 11th Standards
Students use properties of the Pythagorean Theorem. In this trigonometry lesson, students identify and use the ratios of a unit circle to solve problems. They identify the six trigonometric identities using the right triangle.

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