Social exchange theory explains how and why people decide to initiate and maintain relationships using an economic metaphor of relational costs, rewards, profits, and losses.

Types of Consumer Decisions

A day does not go by without using simple machines. This program explores the six major types of simple machines with practical, colorful examples of each. Vivid video footage illustrates how each of the following simple machines works...

NIST Director and Under Secretary of Commerce for Standards and Technology provides an update of NIST's advancement in its role of driving and shaping the federal government's long-term use of cloud computing technology.

John Fallon is a 7th & 9th grade English teacher at Fairfield Country Day School, a PreK-9 all boys school. He designed Dolus, a pervasive Alternate Reality Game to teach Homer's Odyssey in his 7th grade class. John is currently...

In this video, the concept of work is explained, highlighting that work is done when a force causes an object to move. It also introduces the idea of simple machines, which can decrease the amount of force or effort needed to do work....

This live-action video program is about the term wheel and axel. The program is designed to reinforce and support a student's comprehension and retention of the term wheel and axel through use of video footage, photographs, diagrams and...

Ground Fluor Pharmaceuticals

This video provides an introduction to pulleys as simple machines. The video describes the basic components of a pulley and distinguishes between two main types of pulleys: fixed pulleys and movable pulleys.



This video is...

This video provides an introduction to the concept of simple machines, focusing specifically on levers. It highlights that levers allow us to move things and do work with less effort, although they do not decrease the total amount of...

A general introduction to the concept of Social Roles and the major types.

In this educational video, we delve into the pressing environmental issues of pollution, global warming, and extinction. We explore the concept of pollution, its various forms, and how it contaminates our air, water, and land. Discover...

A day does not go by without using simple machines. This program explores the six major types of simple machines with practical, colorful examples of each. Vivid video footage illustrates how each of the following simple machines works...

Chronicles the exploits of Cortes, De Soto, and Coronado; and Spanish incursions into South & Central America, Mexico and the American Southwest. This video looks at pirates who tried to intercept Spanish ships bringing home a bounty of...

A day does not go by without using simple machines. This program explores the six major types of simple machines with practical, colorful examples of each. Vivid video footage illustrates how each of the following simple machines works...