PPT
Biology Junction

Origin of Life

For Students 9th - 12th Standards
Aristotle explained the idea of spontaneous generation, a concept which lasted almost 2,000 years before scientists proved it wrong. Scholars learn about the history of our understanding of the origins of life. They read examples of...
PPT
Curated OER

Medieval Architecture

For Teachers 9th - 12th
While this resource is about architecture, it isn't about art. It demonstrates the differences between Romanesque and Gothic architecture to show changes in the socio-political spectrum of the time. Images and good discussion questions...