In this subject/verb agreement online interactive worksheet, students respond to 12 multiple choice questions. After students answer the questions, they may see the grammar rules that apply to each of the questions.

In this online interactive history quiz worksheet, students respond to 10 short answer and essay questions about the life and accomplishments of Werner Heisenberg.

We tend to see the United States as a country with free trade. Although we do have a great deal of freedom to enter new markets, there are barriers to trade that limit consumer choice. This lesson explores these barriers and how they work.

Use this interactive to explore how interconnected the global economy is. After creating a character, gather some clothes together and enter their origin information into your database. Then look at your own interdependence map and...

Play this two-part interactive game to understand the interdependence and globalization of manufactured goods. By using the clothes in the closet, map out where the clothing is manufactured. The second part of the game investigates...