Here’s an easy way to find the center of gravity of a long, thin object, even if the object’s weight is unevenly distributed.

In this talk from RSA Animate, Sir Ken Robinson lays out the link between 3 troubling trends: rising drop-out rates, schools' dwindling stake in the arts, and ADHD. An important, timely talk for parents and teachers.

This lesson, designed for middle level, goes into further detail about narrative characters and what characterization is. The lesson connects to Cornell notes along with discussion questions that students complete while watching in order to prepare for class the next day

This collection of videos, animations and documents comes from the NCSSM AP chemistry online course. Chapter eleven provides practice and demonstrations related to thermochemistry.

Series of videos that can be used in a Chemistry class created by Paul Anderson- Bozeman Science

In which John Green teaches you about the changes wrought by contact between the Old World and the New. John does this by exploring the totally awesome history book "The Columbian Exchange" by Alfred Crosby, Jr. After Columbus "discovered" the Americas, European conquerors, traders, and settlers brought all manner of changes to the formerly isolated continents. Disease and invasive plant and animal species remade the New World, usually in negative ways. While native people, plants, and animals were being displaced in the Americas, the rest of the world was benefitting from American imports, especially foods like maize, tomatoes, potatoes, pineapple, blueberries, sweet potatoes, and manioc. Was the Columbian Exchange a net positive? It's debatable. So debate.

Chapters:
Introduction: The Columbian Exchange
Diseases of the Columbian Exchange
John Green Does the Cinnamon Challenge (Ew)
An Open Letter to Tobacco
Animals of the Columbian Exchange
Plants of the Columbian Exchange
People of the Columbian Exchange
Credits

Students will recognize that computer science is so important because it can be found in almost every career. Don't wait, start learning how to code today.

This video explains the different part of an experiment and all the components that need to be included to be a valid test. Good for vocabulary and getting a deeper understanding of how the variable group and the control group connect. Also introduces independent and dependent variables and does a nice job of illustrating how they relate to each other.

Host Harry Kreisler welcomes UC professors Herbert York and Susan Shirk for a discussion of the role of research universities in meeting today’s national security challenges. York, the first director of Lawrence Livermore National Laboratory and founding director of the UC Institute on Global Conflict and Cooperation (IGCC) and Shirk, Asian security policy expert and current IGCC Director, compare the Cold War and the Post 911 world. Highlighting the importance of regional contexts and the need for well informed diplomacy, they evaluate the U.S. response in managing these threats and offer recommendations for the future. (55 minutes)

This week, Stan Muller teaches you the basics of copyright in the United States. Copyright law is territorial, so we're going to cover the system we know the most about, and that's the US. Stan will talk about what kind of ideas can be copyrighted, who can get a copyright, and what protections the copyright grants. We'll also talk about the always contentious and seemingly ever-growing term of copyright. Stan will also teach you about the low bar for creativity, which means that original work doesn't have to be all that original, and he'll also touch on the problems with copyright in the modern world.

In this video, Jonathan examines the biology of coral reefs and their importance to the marine ecosystem. Please see the accompanying lesson plan that discusses pH and ocean acidification for educational objectives, discussion points and classroom activities.

The objective of this unit is for students to be able to evaluate cyberbullying and know what to do if they witness it and or are a victim. We are going to touch on the bystander effect, THINK, the definition of cyberbullying, the signs of someone being cyber bullied, and how to handle cyberbullying in smart and effective ways. We want the students to be aware of the issue and know how to help and especially prevent it if they can by being smart digital citizens. This lesson will also show how to promote awareness of cyberbullying and how to show people the negative effects of it. This lesson will help the students develop an understanding of the issue and know many components of it.

Salvador Dalí, The Persistence of Memory, 1931 (The Museum of Modern Art) Speakers: Sal Khan & Steven Zucker. Created by Beth Harris and Steven Zucker.

In this video segment adapted from ZOOM, cast members make a bridge from a single piece of paper. Will it be strong enough to hold a hundred pennies?

On May 22, 2011 an EF-5 Monster Tornado over a mile wide leveled portions of the Southwest side of Joplin, Missouri. Jeff and Kathryn Piotrowski knew that the atmosphere that day was going to be extremely volatile and Jeff mentioned many times in his forecast about storms near Joplin. No truer words were spoken as the day unfolded and a tornadic storm developed near Galena, Kansas which traveled on to Joplin

This video explains and shows definitions and example of the words: volume, area, surface area, and base. It also talks about word problems associated with volume and area. Students need to figure out if the provided story problems are finding the correct thing, volume or area, based on the object. Explanations of the correct answer are provided.