Purple Math
Purplemath: The Pythagorean Theorem
Defines the Pythagorean Theorem, and demonstrates how to use this Theorem in connection with right-angled triangles.
Purple Math
Purplemath: Sectors, Areas, and Arcs
Explains formulas for areas of sectors of circles and lengths of arcs. Demonstrates how to use the formulas in each of degrees and radians.
Interactive Mathematics
Interactive Mathematics: Trigonometric Functions of Any Angle
Given a reference angle, you can find the trigonometric functions of any angle. The process is demonstrated in this lesson and examples are provided for practicing the concept.
BBC
Bbc: Gcse Bitesize: Sine and Cosine Rules
BBC provides a three part lesson on solving triangles, by using the sine rule and cosine rule.
Cuemath
Cuemath: Law of Cosine
Explore the world of the Law of Cosine in this mini-lesson. Provides a definition, simulations, examples, and practice questions that help with understanding.
Interactive Mathematics
Interactive Mathematics: Trigonometric Functions
Just about everything you need to know about trigonometry can be found here. Interactive examples and demonstrations help to enhance the lessons. Although not required, the tutorial uses Live Math and Scientific Notebook.
Math Medics
S.o.s. Math: Trigonometric Functions
Introductory lesson to trigonometric functions. Includes definitions, properties, graphs, and a wide variety of examples and practice exercises.
Math Medics
S.o.s. Math: Solving Trigonometric Equations
This lesson contains trigonometric equations of various forms that you can solve. The problems contain the answers solved in three different ways: algebraically, graphically, and using the concept of equivalence.
Interactive Mathematics
Interactive Mathematics: Integration by Trig Substitution
Having trouble integrating those tough functions? Try using Trigonometric Substitution. This lesson demonstrates the process and allows for you to practice using the examples provided.
TeachEngineering
Teach Engineering: Navigating by the Numbers
For this lesson, middle schoolers will learn that math is important in navigation and engineering. Ancient land and sea navigators started with the most basic of navigation equations (Speed x Time = Distance). Today, navigational...
CK-12 Foundation
Ck 12: Analysis: Products and Quotients of Complex Numbers
[Free Registration/Login may be required to access all resource tools.] This lesson covers multiplying and dividing complex numbers. Students examine guided notes, review guided practice, watch instructional videos and attempt practice...
CK-12 Foundation
Ck 12: Analysis: Properties of Logarithms
[Free Registration/Login may be required to access all resource tools.] In this lesson students use properties of logarithms to rewrite and expand/condense. Students examine guided notes, review guided practice, watch instructional...
CK-12 Foundation
Ck 12: Analysis: Products and Quotients of Complex Numbers
[Free Registration/Login may be required to access all resource tools.] In this lesson, students calculate the products and quotients of complex numbers, identifying conjugates. Students examine guided notes, review guided practice,...
CK-12 Foundation
Ck 12: Analysis: Quadratic Inequalities
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn about graphing and solving quadratic inequalities. Students examine guided notes, review guided practice, watch instructional videos...
CK-12 Foundation
Ck 12: Analysis: Quadratic Formula and Complex Sums
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving quadratic equations when the answers are complex numbers. Students examine guided notes, review guided practice and attempt practice...
CK-12 Foundation
Ck 12: Analysis: Composition of Functions
[Free Registration/Login may be required to access all resource tools.] This lesson provides an introduction to the composition or combination of functions.
CK-12 Foundation
Ck 12: Complex Numbers
[Free Registration/Login may be required to access all resource tools.] This lesson covers the powers of i, and adding and subtracting complex numbers, as well as how to plot them in the complex plane. Students examine guided notes,...
CK-12 Foundation
Ck 12: Determination of Unknown Angles Using Law of Cosines
[Free Registration/Login may be required to access all resource tools.] This lesson covers using the Law of Cosines to find an angle in a triangle.
TED Talks
Ted: Ted Ed: Pixar: The Math Behind the Movies
The folks at Pixar are widely known as some of the world's best storytellers and animators. They are perhaps less recognized as some of the most innovative math whizzes around. Pixar Research Lead Tony DeRose delves into the math behind...
Math Planet
Math Planet: Algebra 2: Trigonometric Functions
Get information about trigonometric functions by viewing examples and a video lesson. [2:08]
Math Planet
Math Planet: Algebra 2: Angles
Features a definition, examples, and a video lesson all related to angles. [0:35]
Math Planet
Math Planet: Algebra 2: Sines
Defines and examines the law of sines through examples and a video lesson. [2:02]
Math Planet
Math Planet: Algebra 2: Inverse Functions
An example and a video lesson help to explain inverse functions. [0:38]
Math Planet
Math Planet: Geometry: Mean and Geometry
The geometric mean is explained through examples and a video lesson. [1:12]