In this video segment adapted from NOVA, watch residents of the Peruvian Andes build a suspension bridge made entirely of grass. The ancient Inca were a textile society and thus skilled in working with natural fibers including alpaca and cotton. Still, it might surprise people today that their solution to crossing the canyons and gorges of their mountainous empire featured another fibrous material: grass. When you consider how they built a simple suspension bridge, you'll realize that not only was this a practical solution, it was also a safe one. In this video segment adapted from NOVA, watch residents of the Peruvian Andes as they build a traditional and functioning grass bridge the likes of which enabled the ancient Inca people to flourish for several hundred years. Grades 3-12.

In this 7th grade humanities lesson, students prepare tortillas, pico de gallo, and tomatillo salsa after learning about the different agricultural techniques developed by the Mayan, Aztec and Inca civilizations.

By the end of this section, you will be able to:Describe how Europeans solved their labor problemsDescribe the theory of mercantilism and the process of commodificationAnalyze the effects of the Columbian Exchange

 U.S. History is designed to meet the scope and sequence requirements of most introductory courses. The text provides a balanced approach to U.S. history, considering the people, events, and ideas that have shaped the United States from both the top down (politics, economics, diplomacy) and bottom up (eyewitness accounts, lived experience). U.S. History covers key forces that form the American experience, with particular attention to issues of race, class, and gender.Senior Contributing AuthorsP. Scott Corbett, Ventura CollegeVolker Janssen, California State University, FullertonJohn M. Lund, Keene State CollegeTodd Pfannestiel, Clarion UniversityPaul Vickery, Oral Roberts UniversitySylvie Waskiewicz

By the end of this section, you will be able to:Describe how Europeans solved their labor problemsDescribe the theory of mercantilism and the process of commodificationAnalyze the effects of the Columbian Exchange

U.S. History is designed for a two-semester American history sequence. It is traditional in coverage, following a roughly chronological outline, and using a balanced approach that includes political, economic, social, and cultural developments. At the same time, the book includes a number of innovative and interactive features designed to enhance student learning. Instructors can also customize the book, adapting it to the approach that works best in their classroom.

World History Encyclopedia is a non-profit organization publishing the world's most-read history encyclopedia. Its mission is to engage people with cultural heritage and to improve history education worldwide.

The website offers thousands of free history articles, with a writing style aimed at students from middle school level and up. Articles are complemented by videos, timelines, 3D models, and interactive maps. The search function offers many filters, including the possibiliy to search for primary source texts.

Additionally, the organization published free teaching materials in its education section (https://www.worldhistory.org/edu/).