20 Fun, Web-based Activities With Reproducible Graphic Organizers That Enable Kids to Research and Learn‹on Their Own! Great for Independent Learning! Where can students visit an Egyptian pyramid, learn the Sumerian number system, study the ancient Chinese dynasties, and explore the Mayan city of Chichen Itza? The Internet, of course! Armed with reproducible graphic organizers, students go online and hone their research skills to learn about these and other ancient civilizations. Students then use what they've learned to recreate a Mayan calendar, map out Mesopotamia, create a timeline of ancient Greece, and more.