I took a trip to one of Austin's famous moontowers so I could put the enormity of our solar system into perspective. With the help of a grapefruit, and a lot of walking, you'll get an idea of just how tiny everything is out there!!

Down here, on Earth, if you look up at the night sky, it seems like all the stars up there look the same. Or maybe at least similar. But, it turns out that stars are very different and we shouldn't stereotype them. Some are bigger, some...

There is more than one way to measure the same thing! Jessi and her friend The Giant Squidstravaganza (Squid for short) explore the differences between the Metric System and the Imperial System.

In this video Paul Andersen explains how energy can be transferred from one system to another. In a closed system the energy can be transferred as either work or heat. Thermal energy transfer is know as energy transfer through heat. ...

Mr. Andersen explains the simple principles behind simple machines. He shows how the mechanical advantage of a simple machine can increase the input force. A brief discussion of work is also included.

New ReviewIn this lesson, we explore the electric potential difference between two locations in the electric field of a point charge — one of the most essential concepts in AP Physics and introductory electrostatics. Using a positive point charge...

New ReviewIn this Grade 7 math lesson, students will learn how to determine the distance between the center of a circle and a point drawn on the circle when the radius is given. We begin by reviewing the definition of a circle’s radius and...

In this shorts math video we will learn how to find midpoint of a segment without using the formula to answer a standardized math test question. If you understand the concept of midpoint, there is a shortcut to finding the midpoint of...

Why do salmon use Earth's magnetic field to find their birth stream, only to die after spawning? Why do caribou traverse thousands of miles? This is the dramatic story of animal migration—a tale of life, death, and the survival of future...

In this Grade 6 math lesson, we review how to find which of four points is a given distance from a graphed point on the coordinate plane. You’ll learn how to determine distances when moving right, left, up, and down from a given point....

Germans rely very little on body language, although it is still an important part of communication. In general, they consider hand gestures unnecessary. They focus instead on communicating well verbally. Someone who expresses himself or...

In this video, explore different types of routing protocols, such as distance-vector and link-state protocols.

This lesson will teach us an intuitively understandable matrix for how our regression works.

Learn how to calculate gravitational attraction between a point mass and a uniform rod using integration and Newton’s law of universal gravitation—essential for advanced physics students.

This video provides an informative explanation of the concept of focal length in lenses. The instructor begins by clarifying the distinction between focal length and focal distance, emphasizing that focal length refers to the...

This video provides an informative explanation of depth of field in photography. It begins by defining depth of field as the areas of an image that appear clear and in focus, and highlights how it can be used to draw attention to...

Brief introduction to understanding how to calculate speed of an object from a graph

2 min video describing the correlation between energy and work - middle school science

A video entitled "Slope: Real World" that covers examples of real-world situations that can be modeled using slope.

A video entitled "Sketch Graph of Function" that covers sketching graphs of functions from descriptions of real-world motion.

A video entitled "Examine Unknown Triangles" that covers how to use the distance formula and the converse of the Pythagorean theorem to see if triangles are right triangles.

You will solve real-world application problems modeled by inequalities.

You will calculate the distance between points in a coordinate plane.

Learn How to Find the Circumference of a Circle AND the Perimeter of a Semi-Circle!*



Wait… what’s the difference between circumference and *p
erimeter*?
What’s the best way to remember those c
ircle formulas?
And...