What's so special about Leonardo da Vinci's Vitruvian Man? With arms outstretched, the man fills the irreconcilable spaces of a circle and a square- symbolizing the Renaissance-era belief in the mutable nature of humankind. James Earle...

In this activity, students investigate the impact of tariffs on businesses and consumers during the 1880s by looking at a political cartoon, solving a short math problem, and comparing protectionism between time periods. They then...

This tutorial is a sample lesson from a Scholastic Red session on vocabulary development.