Steel is a man-made alloy or a mixture of metals. Lesson 18 in this series of 36 focuses on metals and their extraction from Earth. Individuals read about, discuss, and answer questions after learning how people find most metals, the...

The story of Ruby Bridges and the case of Brown vs. The Board of Education are fantastic tools for discussing the concept of separate but equal. Kids tackle some big questions about what is fair, what is civil, and what rights or laws...