The Historical Thinking Matters website is an excellent resource for teachers and students who hope to learn about the importance of the historical perspective. Created by the Center for History and New Media at George Mason University and their colleagues at Stanford University, the site will help students learn "to interrogate historical sources and use them to form reasoned conclusions about the past." New users may wish to start with the "Why Historical Thinking Matters" section, which offers a short film about the Battle of Lexington in 1775. Moving on, the "Student Investigations" area contains four investigations of topics from post-Civil War history, including the Scopes Trial, the creation of Social Security, and Rosa Parks. Finally, the site is rounded out by a solid set of resources for instructors, complete with examples of teacher and student work.