Article
Khan Academy

Khan Academy: Us History: 1980 Present: Continuity and Change in the Postwar Era

For Students 9th - 10th
How much did the events of the tumultuous postwar era reshape American national identity? Kim discusses the extent to which developments like the Cold War, the Civil Rights Movement, Vietnam, and student protests of the 1960s changed...
Article
Rutherford B. Hayes Presidential Library & Museum

United States Indian Policy During the Late 19th Century: Change and Continuity

For Students 9th - 10th
By the 1890's, the status of Indian people seemed to validate Frederick Jackson Turner's claim that "the frontier has gone, and with its going has closed the first period of American history." Natives ceased to threaten the Republic...
Article
Khan Academy

Khan Academy: Towers of Hanoi, Continued

For Students 9th - 10th
Recursively solving the Towers of Hanoi.
Article
English Club

English Club: Basic Tenses: Regular Verbs

For Students 4th - 8th Standards
Notes and examples of verb tense including past, present, future, past participle, present participle, simple, continuous, perfect, and continuous perfect.
Article
English Club

English Club: Basic Tenses

For Students 4th - 8th Standards
Notes and examples of verb tense including past, present, future, active, passive, normal, intensive, continuous, perfect, and continuous perfect.
Article
Other

Blue Moon Original Oil Paintings: The Principle of Unity

For Students 9th - 10th
Illustrated essay on the principle of unity, also known as harmony, explains how the grouping techniques of alignment, proximity, similarity, and continuity can be used to create a unified, harmonious composition.
Article
Harvard University

Royal Astronomical Society: Steady State Theory of an Expanding Universe

For Teachers 9th - 10th
In-depth research about the steady-state theory of the expanding universe found within a bibliographic database of astronomical literature. Learn about the theory that asserts that new matter is continuously created as the universe expands.
Article
PBS

Pbs News Hour: Afghanistan's Economy and Opium Trade

For Students 9th - 10th
This comprehensive article looks at Afghanistan's economy and the impact of opium to the country. (3 October 2006)
Article
Cornell Lab of Ornithology

Habitat Network: Amazing Animals That Use Vernal Pools

For Students 9th - 10th
Find out about species that use vernal pools for reproduction and continuity of life.
Article
Khan Academy

Khan Academy: A Particle System

For Students 9th - 10th
This Khan Academy resource is an article about single particle systems and creating continuous stream of particles, adding a new one with each cycle through draw.
Article
CNN

Cnn: u.s. Losing War in Afghanistan, Mc Cain Says

For Students 9th - 10th
In this article, Arizona senator John McCain states, "When you aren't winning in this kind of war, you are losing". He makes several recommendations on what the United States needs to to in order to prevent increased violence in...
Article
Khan Academy

Khan Academy: Pick a Drawing Project!

For Students 9th - 10th
Following the completion of the Hour of Code tutorial, three drawing projects are offered for continued practice of skills learned.
Article
Khan Academy

Khan Academy: Memory Game: Scoring and Winning

For Students 9th - 10th
Continuing with the creation of the Memory Game is an illustration of the scoring component.
Article
Khan Academy

Khan Academy: Memory Game: Flipping Tiles

For Students 9th - 10th
Continuing with the creation of the Memory Game is creating the tiles to flip--click-flipping tiles, restricting tile flips, delay-flipping tiles, and checking matches.
Article
Other

Weather Questions: How Does Weather Radar Work?

For Students 9th - 10th
Radar (which stands for RAdio Detection And Ranging) transmits microwaves in a focused beam. Some of this microwave energy bounces off of objects and returns to the radar to be measured. The radar sends pulses of energy, rather than a...
Article
Mocomi & Anibrain Digital Technologies

Mocomi: Past Tense and Its Types

For Students 2nd - 8th
Defines past tense and provides examples of the different types.
Article
Mocomi & Anibrain Digital Technologies

Mocomi: Future Tense and Its Types

For Students 2nd - 8th Standards
Learn about future tense and its types.
Article
Mocomi & Anibrain Digital Technologies

Mocomi: Present Tense and Its Types

For Students 2nd - 8th Standards
Learn about present tense and its types.