Curated OER
The Notorious Four-Color Problem
Take a walk through time, 1852 to 2005, following the mathematical history, development, and solution of the Four-Color Theorem. Learners take on the role of cartographers to study a United States map that is to be colored. One rule: no...
Cornell University
Insect Anatomy
Young entomologists discover insect anatomy in a very detailed unit plan. Offering background information for teachers about various insects, class members explore the differences between bugs and insects—and yes, there are many...
Civil War Trust
Contrasting the North and South before the War
Learners create a standing cube with four panels that display information on the North and South's economy, geography and climate, society, and means of transportation before the Civil War. Through discussion and reading informational...
Mathematics Vision Project
Module 1: Getting Ready Module
This fabulous resource is a must-have for any algebra teacher's arsenal of lessons. Developing the idea of equations and use of variables from basic physical scenarios, learners gain valuable intuition in the structure and meaning of...
It's About Time
Coal and Your Community
When I was young, I was afraid of the dark. Now I am afraid of getting the electric bill. This fourth lesson in a series of eight focuses on coal mining, conservation, and energy efficiency. Scholars start by taking data from a table and...
Advocates for Human Rights
A Global Perspective on Immigration
To gain a global perspective on immigration, groups investigate and create a map of the migration patterns in Africa, Asia, Europe, Latin America, and the Middle East. Class members then examine the background, immigration history, and...