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Two Minute Music Theory
Using the Circle of Fifths
A look at all that can be done using the Circle of 5ths
Brian McLogan
How to rotate a figure about different fixed points
๐ Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also...
Science Buddies
DIY Mini Propeller Car
Brian McLogan
Review of trigonometry Points on the Unit Circle
๐ Learn about the trigonometric functions using the unit circle. The trigonometric function of an angle is the value of the trigonometric functions of sine, cosine, tangent, cosecant, secant and cotangent of that angle. To use the unit...
JJ Medicine
Introduction to ECG | The Basics | Einthovenโs Triangle, Limb, Augmented and Precordial Leads
Introductory lesson on ECGs including Einthovenโs triangle, lead placement, limb, augmented and precordial leads. Reading and understanding ECGs is an incredibly important skill in medicine. Before we can understand some of the...
Brian McLogan
What are terminal and initial sides of an angle?
๐ Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...
Curated Video
Rotations in the Coordinate Plane
In this video lesson we will learn how to rotate figures in the coordinate plane about the origin. We will understand that all rotations result an image that is congruent to the original figure. The origin will be the center of...
Curated Video
Understanding Rotations: Identifying and Rotating Figures in the Coordinate Plane
In this lesson on rotations, students will learn how to identify rotations and rotate figures in the coordinate plane. They will understand the vocabulary of transformations and how to tell when a transformation is a rotation. The...
Brian McLogan
Learn to find the reference angle of a negative angle in terms of pi
๐ Learn how to find the reference angle of a given angle. The reference angle is the acute angle formed by the terminal side of an angle and the x-axis. To find the reference angle, we determine the quadrant on which the given angle lies...
Brian McLogan
Learn How to Sketch an Angle in Radians as a Whole Number
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
What is the difference between rotating clockwise and counter clockwise
๐ Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also...
Brian McLogan
Sketch the Angle in Standard Position
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Sketch the Angle in Standard Position
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Sketch the Angle in Standard Position
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
How to determine which quadrant an angle lies in
๐ Learn how to determine the quadrant of an angle given in radians. Recall that 1 radian is the distance on the circumference of the circle that is equivalent to the radius of the circle. Also, recall that the circumference of a circle...
Curated Video
Exploring the Spinning Dancer and Other Ambiguous Perceptions
In this video, viewers are introduced to the spinning dancer illusion, also known as the silhouette illusion. Through examples of other ambiguous figures such as the Necker cube, Schroader stairs, and Ruben bars, the video explains the...
Brian McLogan
Rotations in degrees for counter and clockwise directions
๐ Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also...
Brian McLogan
Sketch the Angle in Standard Position
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Sketch the Angle in Standard Position
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Sketch the Angle in Standard Position
๐ Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Given a whole number in radians find the quadrant the angle lies
๐ Learn how to determine the quadrant of an angle given in radians. Recall that 1 radian is the distance on the circumference of the circle that is equivalent to the radius of the circle. Also, recall that the circumference of a circle...
Brian McLogan
Determine the quadrant of axis an angle lies on or in
๐ Learn how to determine the quadrant of an angle given in radians. Recall that 1 radian is the distance on the circumference of the circle that is equivalent to the radius of the circle. Also, recall that the circumference of a circle...
Brian McLogan
Determine the quadrant an angle is in with degrees and minutes
๐ Learn how to determine the quadrant of an angle given in radians. Recall that 1 radian is the distance on the circumference of the circle that is equivalent to the radius of the circle. Also, recall that the circumference of a circle...
Brian McLogan
What are bearings and how do we use them
๐ Learn how to solve the word problems with trigonometry. Word problems involving angles, including but not limited to: bearings, angle of elevations and depressions, triangles problems etc are solved using trigonometry. To be able to...