Instructional Video4:39
Curated Video

Identify Transformations

K - 8th
The video “Identify Transformations” analyzes transformations to determine whether a rotation, reflection, or translation has occurred.
Instructional Video2:45
Curated Video

Proofs

K - Higher Ed
A video entitled “Proofs” which explores how to set up geometric proofs.
Instructional Video5:25
Curated Video

Rhombus, Square, Rectangle

K - 8th
A video entitled “Rhombus, Square, Rectangle” discusses the attributes of several quadrilaterals, including squares, rhombuses, and rectangles.
Instructional Video8:27
Communication Coach Alex Lyon

Communication Professor Reacts to Miracle Locker Room Speech

Higher Ed
Communication Professor reacts to the famous locker room speech from movie, Miracle, the real-life hockey story. What makes this short speech so powerful? Let's find out why it was a Miracle.
Instructional Video3:13
Curated Video

The Pythagorean Theorem and the Coordinate Plane

9th - 12th
In this video, the teacher explains how to use the Pythagorean theorem in the coordinate plane to find the length of a segment. They walk through the steps of identifying the right triangle, finding the values of the legs, plugging them...
Instructional Video1:41
Science Buddies

The Impossible Arrow Illusion

K - 5th
The "impossible arrow" illusion by Prof. Kokichi Sugihara seems to break the laws of physics. The arrow always seems to point in one direction when you try to rotate it, but its reflection in a mirror points the other way! Learn about...
Instructional Video4:07
Science Buddies

Make 3D Printed Optical Illusions

K - 5th
Make your own amazing 3D printed optical illusions based on the work of Professor Kokichi Sugihara, including the "impossible arrow" and other shapes! These illusions exhibit "anomalous mirror symmetry" where their reflections appear...
Instructional Video8:11
Science Buddies

Control a Positional Servo Motor with an Arduino

K - 5th
Learn how to use the Arduino servo library to control a positional servo motor in this video. Visit the the Science Buddies website for cool science projects you can do with an Arduino:...
Instructional Video8:36
Flipping Physics

Equipotential Surfaces

12th - Higher Ed
The electric potential difference in a uniform electric field is derived and used to show lines of equal electric potential or equipotential lines. Equipotential lines and surfaces of point charges and dipoles are shown. The equation for...
Instructional Video1:10
Curated Video

Draw an angle of a known measure

K - 8th
Draw an angle of a known measure
Instructional Video1:28
Curated Video

Drawing a rectangle given its side lengths

K - 8th
Drawing a rectangle given its side lengths
Instructional Video17:42
Curated Video

28 Triacs | Power Electronics

Higher Ed
28 Triacs | Power Electronics
Instructional Video8:11
Curated Video

Angles of Triangles and Similarity

9th - 12th
In this video, the teacher reviews how to find angles in triangles using the triangle angle sum theorem. The teacher walks through four parts of a standardized math test question, showing step-by-step how to find missing angle...
Instructional Video12:25
Curated Video

Similar Figures, Angle-Angle Similarity and Indirect Measurement

9th - 12th
In this video lesson, we explore similar figures and indirect measurement in math. We learn about corresponding sides and angles, how to use similarity to solve problems, and even how to find the height of an object using indirect...
Instructional Video3:27
Curated Video

High Five Facts - Polygons

Pre-K - 5th
This video explores five fun facts about polygons.
Instructional Video6:54
Curated Video

How to Find Angles Formed by Parallel Lines and a Transversal

9th - 12th
In this video, the teacher explains how to find the measures of angles formed by parallel lines and a transversal. They use the properties of supplementary angles, alternate interior angles, and the triangle sum theorem to solve for the...
Instructional Video3:11
Curated Video

High Five Facts - Quadrilaterals

Pre-K - 5th
This video explores five fun facts about quadrilaterals.
Instructional Video5:59
Curated Video

Using Angle Facts

9th - 12th
In this video, the teacher uses angle facts to solve math problems. The students are given a diagram with intersecting lines and angles, and they are asked to write algebraic equations to find the values of X and Y. The teacher walks...
Instructional Video4:19
Curated Video

Angles formed by Parallel Lines and a Transversal

9th - 12th
In this video, the teacher explains angle facts using the concepts of alternate interior angles and supplementary angles in the context of parallel lines and a transversal. The teacher reviews four algebraic expressions representing...
Instructional Video7:04
Curated Video

Modern Web Design with HTML5, CSS3, and JavaScript - Creating the Cascading Style Sheet (CSS) Linear Gradients

Higher Ed
This video explains how to create the CSS linear gradients. This clip is from the chapter "Exploring More with Cascading Style Sheet (CSS3) and Creating Webpages Easily" of the series "Modern Web Design with HTML5, CSS3, and...
Instructional Video1:17
Curated Video

The types of angles.

K - 8th
The types of angles.
Instructional Video1:25
Curated Video

Drawing a triangle given the measures of two angles

K - 8th
Drawing a triangle given the measures of two angles
Instructional Video0:46
Curated Video

The concept of the angle and its components

K - 8th
The concept of the angle and its components
Instructional Video1:28
Curated Video

The congruent meaning at line segment

K - 8th
The congruent meaning at line segment