Small coincidences. They happen all the time and yet, they pass us by because we are not looking for them. In a delightfully subtle trick, magician Helder Guimarães demonstrates with a deck of cards, a dollar bill and a stuffed giraffe.

Seventy thousand years ago, our human ancestors were insignificant animals, just minding their own business in a corner of Africa with all the other animals. But now, few would disagree that humans dominate planet Earth; we've spread to...

This problem is called the "100 Prisoners Problem"

Winner, winner, chicken dinner!

Howcast - Learn how to do the catch the dollar bill bar trick from professional illusionist Ben Nemzer in this Howcast magic tricks video.

Howcast - Learn how to slice a carrot with a dollar bill in this dinner table magic tricks video from Howcast.

Howcast - Learn how to do the linking paper clips trick from professional illusionist Ben Nemzer in this Howcast magic tricks video.

DIY SCI host Steve Spangler demonstrates whether or not American currency is magnetic!

DIY SCI host Steve Spangler demonstrates the law of inertia through several experiments!

In this MightyOwl video you will learn about the value of different coins and the dollar bill. We will show you different strategies for counting up coins of different values. So next time you want to see how much money you have in your...

In order to fund the American Revolutionary War, The Continental Congress created a paper currency called the “Continental”. It’s value plummeted after the war leading to the coinage act of 1792, which created the US Dollar in the form...

Though the United States dollar was officially adopted in 1785, paper currency didn't fully enter circulation until the Civil War. The current appearance of modern US bills developed only after a long period of economic development based...

Angela Onwuachi-Willig is dean and and Ryan Roth Gallo & Ernest J. Gallo Professor of Law at Boston University School of Law. A renowned legal scholar and expert in critical race theory, employment discrimination, and family law, she...

In order to fund the American Revolutionary War, The Continental Congress created a paper currency called the “Continental”. It’s value plummeted after the war leading to the coinage act of 1792, which created the US Dollar in the form...

In this video, the teacher explains how to solve real-world money problems by converting larger units to smaller units. The students learn the value of different coins and how to make the smallest number of coins when paying someone....

👉 Learn how to label the parts of a conditional statement. A conditional statement is an if-then statement connecting a hypothesis (p) and the conclusion (q). If the hypothesis of a statement is represented by p and the conclusion is...

In this playlist I show you how to find the vertical and horizontal asymptotes as well as the x-intercepts of a function. To find the x intercepts we find where the domain is not defined for the function. To find the horizontal...

Here is a children's song for President's Day. It's called President Washington and President Lincoln. Kids can learn some fun facts about each of these presidents. So, come on and sing along to the President Washington and President...

Most have never used Bitcoin and probably don't know exactly what it is. Although, estimates show that over 16 million Americans buy and spend Bitcoin frequently. So, should you be getting on the crypto bandwagon?

With some stores now refusing to accept cash as a form of payment, does this mean bills and coins are going the way of the dodo?

This video is a lesson on how to measure using inch length units. It explains the importance of using straight lines and making sure the units are exactly one inch. The video demonstrates how to use inch tiles to measure the length of...

Learn all about George Washington's early life, military career, his role in the Revolutionary War, his presidency, his later years, and his historical legacy. Famous George Washington quotes are presented by an animated "George" that...

Was there really an Uncle Sam? Who wrote the Pledge of Allegiance? Why are the flag's colors red, white and blue? Children will enjoy exploring answers to these questions and learning about the origins and meaning of our country's most...