Gordon Parks and the writer Ralph Ellison collaborated to show that Harlem is everywhere. Gordon Parks, Off on My Own (Harlem, New York), 1948. Gelatin silver print. The Art Institute of Chicago, Amanda Taub Veazie Acquisition Fund, 2016.125. © The Gordon Parks Foundation. From "Harlem is Nowhere," a collaborative project between Gordon Parks and Ralph Ellison. A Seeing America video. Speakers: Michal Raz-Russo, David and Sarajean Ruttenberg Associate Curator of Photography, Art Institute of Chicago and Dr. Steven Zucker Special thanks to Michal Raz-Russo, Sarah E. Alvarez, The Gordon Parks Foundation, the Ralph and Fanny Ellison Charitable Trust, and the Art Institute of Chicago. Created by Beth Harris and Steven Zucker. Find learning related resources here: https://smarthistory.org/seeing-america-2/

What happens to a dream deferred? That is the question posed by Langston Hughes in his poem "Harlem." This resource provided by CommonLit support 5th graders in addressing this question. To support student's understanding of the themes, teachers can access guiding questions, assessment questions and discussion prompts as well as texts with similar themes literary devices, topics and writing style.

The Hawaiian Islands formed primarily as a result of volcanic activity. While most islands ​form near tectonic plate boundaries, the Hawaiian Islands are nearly 2000 miles away from the nearest plate margin. Therefore, scientists believe that the islands formed due to the presence of the Hawaiian "hot spot," a region deep in the Earth's mantle from which heat rises. This heat produces melted rock (magma), which then pushes through the crust and solidifies. Created by Sal Khan.

In this video segment adapted from United Tribes Technical College, meet Native Americans who are concerned about climate change and believe that action today can help future generations once again live in harmony with Earth.

Learn why heart disease, a largely preventable condition, is the leading cause of death in this country today, in this video adapted from The Hidden Epidemic: Heart Disease in America.

Overview of how hedge funds are different than mutual funds. Created by Sal Khan.

Setting up a simple long-short hedge (assuming the companies have similar beta or correlation with market). Created by Sal Khan.

Seeing how the long-short portfolio might do in different market conditions (assuming that the underlying thesis is right). Created by Sal Khan.

Simple case of merger arbitrage when there is an all cash acquisition. Created by Sal Khan.

Understanding how hedge funds are structured and how the managers get paid. Created by Sal Khan.

Similarities in compensation structure for hedge funds, venture capital firms, and private equity investors. Created by Sal Khan.

How will resources and opportunity be distributed in the future? American Scholar Henry Louis Gates, Jr. hopes that the advances of technology will benefit everyone. Created by Big History Project.

An overview of the Hindu pantheon including: Shiva, Vishnu, Brahma, Ganesh, Parvati, Durga, Lakshmi, Karthikeya, Rama and Krishna.

Hinduism is one of the oldest and largest religions in the world. It is also one of the most diverse in terms of practice. This video gives an overview of the central spiritual ideas of Brahman, Atman, Samsara and Moksha.

Hinduism is one of the oldest and largest religions in the world. It is also one of the most diverse in terms of practice. This video gives an overview of the central spiritual ideas of Brahman, Atman, Samsara and Moksha.

An overview of the important religious texts in Hinduism including the Vedas, Ramayana, Mahabharata and Bhagavad Gita.

A Hindu temple can be a simple structure by the side of the road or a large complex including many buildings. Temples serve as dwelling places for deities, surrounded by markets selling offerings and flowers. The inner sanctuaries are small and intended for a few worshippers at a time. Above the sanctuaries are central towers, shaped like the mountain home of the gods and brightly painted.

Students see that geometric shapes can be found in all sorts of structures as they explore the history of the Roman Empire with a focus on how engineers 2000 years ago laid the groundwork for many structures seen today. Through a short online video, brief lecture material and their own online research directed by worksheet questions, students discover how the Romans invented a structure known today as the Roman arch that enabled them to build architecture never before seen by humankind, including the amazing aqueducts. Students calculate the slope and its total drop and angle over its entire distance for an example aqueduct. Completing this lesson prepares students for the associated activity in which teams build and test model aqueducts that meet specific constraints. This lesson serves as an introduction to many other geometry—and engineering-related lessons—including statics and trusses, scale modeling, and trigonometry.

How do we know what we know about prehistory, the time before the invention of writing? Sal explains.

David Christian gives a TED talk covering the Universe's 13.8 billion year history in 18 minutes. Created by Big History Project.