Flipped Math
Amplitude and Midline
Roll through two graphs. Learners see how the points from the unit circle allow easy construction of the graphs for sine and cosine using an instructional video. They discover how to find the amplitude and midline both from the graphs...
Flipped Math
Modeling with Trig Functions
Find out what to do with Ferris wheels that keep going up and down. Individuals learn how to determine the frequency of a trigonometric function. Pupils use their knowledge of trigonometric functions to model periodic motions like Ferris...
Flipped Math
Period
Stretch out the curve to expand mathematical knowledge. Pupils learn the definition of period and find out how to determine it both from the graph and the equation of the function. Learners use the new skill in graphing periodic...
Flipped Math
Reference Triangles
It is all about where the side is located. Pupils use their knowledge of angles in standard position to find reference angles. They use the Pythagorean Theorem to find lengths along a terminal side of an angle to determine the exact...
FuseSchool
Exact Trig Values - Easy Table
Having trouble remembering the trig ratios of common angles? This resource may be the solution! Using a table, the video instructor describes a memorable pattern. Scholars have an opportunity to practice the pattern during the video.
FuseSchool
Exact Trig Values - Hand Trick
Having trouble remembering the trigonometric ratios of the common angles? Here's a video for you! The lesson instructor demonstrates a hand trick that helps individuals determine the correct trigonometric ratios. The trick works for...
Brightstorm
Radian Measure of Angles - Concept
An informative lesson begins with a concept video explaining how radians are figured. Then it offers videos of four progressively difficult guided practice problems.
Calculus Expert
How to Remember the Unit Circle
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...
Khan Academy
Khan Academy: Trigonometry: Inverse Trig Functions: Arcsin
Video introduces the arcsine function. Includes examples of finding the arcsine using knowledge of the unit circle. Includes link to additional practice problems. [10:36]
Khan Academy
Khan Academy: Trigonometry: Inverse Trig Functions: Arctan
Video introduces the arctangent function. Includes an example of finding the arctangent using knowledge of the unit circle. Includes link to additional practice problems. [10:06]
Khan Academy
Khan Academy: Basic Trigonometric Ratios: Using Trig Functions
Video using the basic trigonometric functions to find the length of a side in a right triangle. Examples are given with angle measures in radians.
Khan Academy
Khan Academy: Inverse Trig Functions: Inverse Trig Functions: Arccos
Video introduces the arccosine function, including an example of finding the arccosine using knowledge of the unit circle.
Khan Academy
Khan Academy: Inverse Trig Functions: Inverse Trig Functions: Arcsin
Introduction to the inverse trig function arcsin. Includes examples of finding the arcsine using knowledge of the unit circle.
Khan Academy
Khan Academy: Unit Circle: Unit Circle Definition of Trig Functions
In this video tutorial students extend SOH CAH TOA trigonometric relationships so that we can define trig functions for a broader class of angles.
Khan Academy
Khan Academy: Unit Circle: Example: The Signs of Sine and Cosecant
Using the unit circle definition to think about the signs of the sine and the cosecant of a negative angle. [3:19]
Khan Academy
Khan Academy: Example: Unit Circle Definition to Calculate Sin and Cos
Explains how to use the unit circle definition to calculate sin and cos of multiple angles. [15:26]
Khan Academy
Khan Academy: Example: Trig Function Values Using Unit Circle Definition
Worked example that uses the unit circle definition to evaluate trig functions. [11:24]
Khan Academy
Khan Academy: Trigonometry: Sine & Cosine Identities: Periodicity
Sal finds trigonometric identities for sine and cosine by considering angle rotations on the unit circle. [6:13]
Khan Academy
Khan Academy: Trigonometry: Tangent Identities: Periodicity
Sal solves a problem by considering the periodicity of the tangent function. [4:01]
Other
Trigonometric Functions f.tf.4
In this teacher-created video, trigonometric functions are developed and explored by changing one of the angles in a right triangle. [10:57]
Khan Academy
Khan Academy: Algebra Ii: Trig Values of Special Angles: Triangle in Unit Circle
Sal finds the trigonometric values of pi/4 using the unit-circle definition. [7:53]
Sophia Learning
Sophia: Drawing an Angle on the Unit Circle: Lesson 2
Given a particular angle, this lesson demonstrates how it can be drawn on a unit circle. It is 2 of 7 in the series titled "Drawing an Angle on the Unit Circle."
Sophia Learning
Sophia: Drawing an Angle on the Unit Circle: Lesson 4
Given a particular angle, this lesson demonstrates how it can be drawn on a unit circle. It is 4 of 7 in the series titled "Drawing an Angle on the Unit Circle."
Sophia Learning
Sophia: Drawing an Angle on the Unit Circle: Lesson 7
Given a particular angle, this lesson demonstrates how it can be drawn on a unit circle. It is 7 of 7 in the series titled "Drawing an Angle on the Unit Circle."