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Air pollution
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CC BY
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This animated video consist of information about air pollution , its sources, its impact and control measures

Subject:
Chemistry
Material Type:
Lesson
Author:
Mariyum Ansari
Date Added:
09/26/2021
"Ajedrez: El Juego de la Vida"
Unrestricted Use
Public Domain
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Es un recurso interactivo diseñado para explorar la rica historia y las complejidades del ajedrez. Desde la legendaria figura de Sissa hasta los movimientos y tácticas esenciales, este libro ofrece una inmersión profunda en el juego. A través de módulos interactivos, los lectores aprenderán sobre las piezas, sus movimientos y estrategias fundamentales, así como técnicas avanzadas que pueden aplicarse en partidas reales. Además, se aborda la psicología del ajedrez, analizando cómo la mente influye en las decisiones y el rendimiento del jugador. Este recurso es ideal tanto para principiantes que buscan entender los conceptos básicos como para jugadores experimentados que desean perfeccionar sus habilidades y profundizar en el aspecto mental del juego. Con un enfoque práctico y accesible, "Ajedrez: el juego de la vida" invita a los lectores a disfrutar y dominar este fascinante deporte.

Subject:
Education
Material Type:
Lesson
Reading
Author:
Alexandra Almeida
Diana Ronquillo
Edison Salgado
Fernando Loaiza
Date Added:
10/20/2024
Akhenaten, Nefertiti, and Three Daughters
Conditional Remix & Share Permitted
CC BY-NC-SA
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House Altar depicting Akhenaten, Nefertiti and Three of their Daughters, limestone, New Kingdom, Amarna period, 18th dynasty, c.1350 BCE (Ägyptisches Museum/Neues Museum, Staatliche Museen zu Berlin). Created by Beth Harris and Steven Zucker.

Subject:
Art History
Arts and Humanities
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Smarthistory
Author:
SmartHistory
Date Added:
11/16/2012
Alaska Civil Rights: Elizabeth Peratrovich
Unrestricted Use
CC BY
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This activity was produced in conjunction with The Library of Congress and the TPS at Metropolitan State University of Denver. This activity will allow learners to: Demonstrate an understanding of the civil rights movement in Alaska and the role Elizabeth Peratrovich played in making that happen during the territorial days in Alaska.

Subject:
Elementary Education
Material Type:
Lesson
Author:
Beth Hartley
Date Added:
07/31/2022
Alaska Native Teens Help Researchers
Read the Fine Print
Educational Use
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In this video adapted from KUAC-TV and the Geophysical Institute at the University of Alaska, Fairbanks, Alaska Native students contribute to research on how their environment is changing as a result of global warming.

Subject:
Applied Science
Ecology
Environmental Science
Forestry and Agriculture
Geoscience
Life Science
Physical Science
Space Science
Material Type:
Lesson
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media Common Core Collection
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
11/04/2008
The Alaska Purchase: Debating the Sale from Russian and U.S. Perspectives
Unrestricted Use
Public Domain
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Students use 19th-century illustrations of Sitka, Alaska to explore what the town might have been like during its time as an administrative center of the Russian empire, as well as asking how...

Subject:
History
U.S. History
Material Type:
Lesson
Lesson Plan
Provider:
Library of Congress
Provider Set:
Lesson Plans
Date Added:
08/15/2022
The Albumen Print - Photographic Processes Series - Chapter 6 of 12
Conditional Remix & Share Permitted
CC BY-NC-SA
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The albumen silver print, invented in 1850, was the most popular photographic printing process of the 19th century. To make albumen silver prints, a sheet of paper is coated with albumen (egg white) and salts, then sensitized with a solution of silver nitrate. The paper is exposed in contact with a negative and printed out, which means that the image is created solely by the action of light on the sensitized paper without any chemical development. Because the paper is coated with albumen, the silver image is suspended on the surface of the paper rather than absorbed into the paper fibers. The result is a sharp image with fine detail on a smooth, glossy surface. This project is made possible by a grant from the U.S. Institute of Museum and Library Services, grant number MA-10-13-0194.

Subject:
Art History
Arts and Humanities
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
George Eastman Museum
Author:
George Eastman Museum
Date Added:
07/29/2021
The Alchemy of Color and Chemical Change in Medieval Manuscripts
Conditional Remix & Share Permitted
CC BY-NC-SA
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Some of the most vivid pigments in medieval manuscripts were manufactured through alchemy, an experimental practice that predates modern chemistry. Today, chemistry deepens our knowledge about paint colors, their identification, and potential continued transformations.

Subject:
Art History
Arts and Humanities
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Getty Museum
Author:
Getty Museum
Date Added:
07/29/2021
Alexander Mosaic from the House of the Faun, Pompeii
Conditional Remix & Share Permitted
CC BY-NC-SA
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Alexander Mosaic, c. 100 B.C.E., Roman copy (Pompeii) of a lost Greek painting, c. 315 B.C.E., Hellenistic Period (Archaeological Museum, Naples). Speakers: Dr. Beth Harris and Dr. Steven Zucker. Created by Beth Harris and Steven Zucker.

Subject:
Art History
Arts and Humanities
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Smarthistory
Author:
SmartHistory
Date Added:
12/19/2012
Alexander Sarcophagus
Conditional Remix & Share Permitted
CC BY-NC-SA
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The Alexander Sarcophagus, c. 312 B.C.E., Pentelic marble and polychromy, found in Sidon, 195 x 318 x 167 cm (İstanbul Archaeological Museums). Speakers: Dr. Elizabeth Macaulay-Lewis and Dr. Steven Zucker. Created by Steven Zucker and Beth Harris.

Subject:
Art History
Arts and Humanities
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Smarthistory
Author:
SmartHistory
Date Added:
08/04/2021
Alexander, Who Used to Be Rich Last Sunday
Read the Fine Print
Educational Use
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In the story, Alexander, Who Used to Be Rich Last Sunday, Alexander receives a dollar from his grandparents that he plans to save, but he spends it all, a little at a time. In this lesson, students count by twos to fill a container with 100 pennies. They are asked whether 100 pennies is the same amount of money as one dollar. They listen to the story and as Alexander spends his money, students come up and remove the correct number of pennies from a container. At the end of the story, students are again asked if 100 pennies is the same amount of money as one dollar. Students discuss the choices that Alexander made and give advice on how he could save his money to reach his goal of buying a walkie-talkie.

Subject:
Economics
English Language Arts
Social Science
Material Type:
Lesson
Lesson Plan
Reading
Provider:
Federal Reserve Bank of St. Louis
Provider Set:
Economic Lowdown Lessons
Author:
Mary C. Suiter
Date Added:
09/11/2019