Students learn about linear programming (also called linear optimization) to solve engineering design problems. As they work through a word problem as a class, they learn about the ideas of constraints, feasibility and optimization related to graphing linear equalities. Then they apply this information to solve two practice engineering design problems related to optimizing materials and cost by graphing inequalities, determining coordinates and equations from their graphs, and solving their equations. It is suggested that students conduct the associated activity, Optimizing Pencils in a Tray, before this lesson, although either order is acceptable.

Chiricahua Apache artist Allan Houser’s “Earth Song” is the signature sculpture on display at the Heard Museum in Phoenix, AZ. Created in 1979 from Alabama marble, it depicts an Apache man singing a song of respect, a prayer to Mother Earth. Houser is considered the Grandfather of Contemporary Native American Sculpture for creating works that are grounded in a respect for all indigenous cultures. Discover more reasons why “Earth Song” is a masterpiece with David Roche, Dickey Family Director and CEO of the Heard Museum. Video by Bank of America. Created by Smarthistory.

Allele frequencies in populations and how they differ from genotype frequencies. Created by Sal Khan.

A gene as a stretch of DNA on a chromosome. Alleles as versions (sequence variants) of a gene.

Outline of the 1973 Allende Coup in Chile and Pinochet's Junta (this video under CC-BY-SA). Created by Sal Khan.

There are a number of European alliances that contributed to the broad scope of World War I. Prominent among these are the 1839 Treaty of London, which promised that the United Kingdom would protect Belgium's neutrality, the 1879 Dual Alliance treaty between Germany and Austria-Hungary to protect each other in the event of Russian attack, the 1892 Franco-Russian Military Convention that promised mutual assistance in the face of attack, the Triple Entente linking the United Kingdom and France (and later Italy), and the Triple Alliance linking Germany, Austria-Hungary, and Italy (at first). Created by Sal Khan.

Students define and classify alloys as mixtures, while comparing and contrasting the properties of alloys to those of pure substances. Students learn that engineers investigate the structures and properties of alloys for biomedical and transportation applications. Pre- and post-assessment handouts are provided.

Washington Allston, Elijah in the Desert, 1818, oil on canvas, 125.09 x 184.78 cm / 49 1/4 x 72 3/4 inches (Museum of Fine Arts, Boston). Created by Beth Harris and Steven Zucker.

Having been personally affected by drug abuse, singer songwriter Ally Burnett learned early on the consequences one person’s mistakes can have on an entire family. After completing the Ally Burnett worksheet, encourage students to share their natural highs by having them hashtag #LiveNaturallyHigh on their social media accounts.

How to use our resources:
1) Watch a dynamic video featuring a powerful, personal story
2) Discuss the video in a group using provided discussion guides
3) Engage in deeper learning through fun, interactive activities that reinforce the concepts from the video.

Sir Lawrence Alma-Tadema, A Reading from Homer, 1885, oil on canvas, 36-1/8 x 72-1/4 inches / 91.8 x 183.5 cm (Philadelphia Museum of Art). Created by Beth Harris and Steven Zucker.

Infrared cameras now reveal concealed drawings under the surface of many of the Renaissance's most revered paintings. Learn how this radical drawing technique was done.

 This Remote Learning Plan was created by Brandee Drahota in collaboration with Rick Meyer as part of the 2020 ESU-NDE Remote Learning Plan Project. Educators worked with coaches to create Remote Learning Plans as a result of the COVID-19 pandemic.The attached Remote Learning Plan is designed for preschool students. This alphabet lesson uses the story Chicka Chicka Boom Boom by Bill Martin, Jr. and John Archambault as an introduction to alphabet identification. 

Includes lessons about the military, workforce transition from high school, associates degrees, trade schools, apprenticeships, gap years, professional certifications, and planning.

Ambrogio Lorenzetti, Allegory of Good Government, Effects of Good Government in the City and the Country, and Allegory and Effects of Bad Government in the City and the Country, Siena c. 1337-40, fresco, Sala della Pace (Hall of Peace) also know as the Sala dei Nove (the Hall of the Nine), 7.7 x 14.4 meters (room), Palazzo Pubblico, Siena Speakers: Dr. Beth Harris and Dr. Steven Zucker For more information visit: http://smarthistory.khanacademy.org/the-allegories-and-effects-of-good-and-bad-government.html. Created by Beth Harris and Steven Zucker.

Students use Library of Congress primary sources to examine items and images of the Philadelphia Centennial Exposition of 1876.

Found marking the grave of an important individual, this gorget was worn as a neck ornament during life. Gorget, c. 1250-1350, probably Middle Mississippian Tradition, whelk shell, 10 x 2 cm (National Museum of the American Indian, Smithsonian Institution, 18/853) Speakers: Dr. David Penney, Associate Director for Museum Scholarship, Exhibitions, and Public Engagement, National Museum of the American Indian and Dr. Steven Zucker A Seeing America video. Created by Beth Harris and Steven Zucker. Find learning related resources here: https://smarthistory.org/seeing-america-2/

America by the Numbers with Maria Hinojosa, a PBS documentary series produced by the Harlem-based Futuro Media Group, reveals how dramatic changes in the composition and demographics of the United States are playing out across the country.