Technology has undoubtedly improved the lives of people around the world—but has it improved communication? Seventh graders read two informative passages about the rise of texting and emailing versus in-person conversations before...

Show your class how engineers use graphs to understand large and complex systems. The resource provides the beginnings of graph theory by introducing the class to set theory, graphs, and degree distributions of a graph. 

A quick comprehension check over innovations in communication and technology in the 1920s.