There's a world of opportunity to re-think and re-design the way we make stuff. 'Re-Thinking Progress' explores how through a change in perspective we can re-design the way our economy works- designing products that can be 'made to be...

A system of linear inequalities in two variables consists of at least two linear inequalities in the same variables. The solution of a linear inequality is the ordered pair that is a solution to all inequalities in the system and the...

Use this handy chart to help acquaint yourself with major facts about the solar system. This chart is broken down by planet and displays data such as the size of the planet, distance from the sun, rotation period, orbital period,...

Learn here about how nervous tissue is capable of communicating within the nervous system.

First in a four-part series that taps the expertise of the Harvard community to examine the promise and potential pitfalls of the rising age of artificial intelligence and machine learning, and how to humanize it. Students are asked to...

Students learn the arrangement of sensory and motor regions in the spinal cord in order to understand a sensory and motor exam. They will also understand the clinical indications of common reflexes.

This collection of historical primary documents tells the story of the trials, cases, and correspondence of slaves and the courts of the United States and Great Britain.

This discussion guide is designed as a tool to facilitate dialogue, and deepen understanding of the complex issues in The Calling, a film that follows seven young Muslims, Catholics, Evangelical Christians, and Jews on a dramatic...

In this exercise, students practice solving systems of linear equations in word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

The vibrant network opened up exchanges between far-flung cultures throughout central Eurasia. The Silk Road wasn't a single route, but rather a vibrant trade network that crisscrossed central Eurasia for centuries, bringing far-flung...

On Jan. 1, 1999 11 European countries united in the European Monetary Union. The new single currency bloc includes almost 300 million consumers and creates the second-largest economy in the world. How will this new union affect the...

This is a rich learning module where students explore the use of telegraphs and of Union codes during the Civil War. Both topics have an "Explainer" to introduce it, pre- and post-activities, and primary and secondary source materials to...

Contains a wealth of information about the Warsaw Pact. Includes information about the Soviet Alliance System, the organization of East European National units, the development of Socialist Armies in Eastern Europe, East-West diplomacy...

Two hundred years after "The Wealth of Nations," this writer describes the continuing impact of Adam Smith's theories. Requires Adobe Reader.

A digital collection of advertisements for runaway and captured slaves in the period before the American Civil War. In addition, there are historical documents related to slavery. Gives the option of browsing or doing a detailed search....

Article 3 of the US Constitution establishes the Judicial Branch (the system of courts and judges), judicial powers, and the crime of treason.

Make learning about the human respiratory system fun and easy. Explore how this system gets oxygen into the body for gas exchange.

Rotatable view of the respiratory system lets you examine the lungs, larynx, and trachea in 360 degrees.

Describes the anatomy of a frog's digestive system and how the stages in the process of digestion. A comparison is made with the human digestive system.

Review the main facts and figures that describe the eight planets in the solar system.

In this Curriculum Unit, students will consider "The First American Party System: Events, Issues, and Positions" in 3 Lessons. The unit also includes worksheets and other student materials that can be found under the resource tab.

Explains the different types of optical character recognition technology available for the blind and visually impaired.

Discusses the Indian reservation system, the impact it had on Native Americans, violent clashes between whites and Indians, and how it was destroyed by the Dawes Act of 1887 and resurrected in the 1930s. Includes questions for students...

In this infographic from KQED, examine age, gender, and race in California's prison population to note the inconsistencies between who is in the general population and who is serving time behind bars. In the accompanying classroom...