Teacher resources and professional development across the curriculum
Teacher professional development and classroom resources across the curriculum
Chemistry: Challenges and Solutions
This course teaches concepts of general chemistry by presenting real challenges in energy production, materials development, biochemistry, and environmental protection. It zeroes in on core topics taught in introductory chemistry, providing a strong foundation for learners to pursue further study in science, med-tech fields, or a liberal education.
Through fieldwork and lab work, archaeologists have been piecing together what happened to bring about the collapse of Copán, once a thriving center of Maya civilization. In this activity, you'll be following in the steps of the archaeologists who studied Copán, looking for clues to how it collapsed. You'll be trying to answer two questions:
1. Why did Copán collapse?
2. Was the end a gradual decline or a rapid fall?