Great overview videos like this one on the not so dark "Dark Ages."
National Archives Document/Cartoon Analysis Worksheets
Smithsonian Education
Smithsonian Education and Smithsonian Learning Lab offer great resources on art, culture, history, travel, and science:
"The Smithsonian Learning Lab is a major rethinking of how the digital resources from across the Smithsonian’s 19 museums, 9 major research centers, the National Zoo, and more, can be used together, for learning."
Edsitement
Explore the library of humanities lesson plans by subject, theme, and grade level. Find Art and Culture lessons on anthropology, art history, folklore, mythology, religion, and more.
STANFORD HISTORY EDUCATION GROUP
SHEG has terrific lesson plans and resources for historical thinking skills, such as Reading Like a Historian.
"The Reading Like a Historian curriculum engages students in historical inquiry. Each lesson revolves around a central historical question and features sets of primary documents designed for groups of students with diverse reading skills and abilities.."
NATIONAL GEOGRAPHY STANDARDS AND LESSONS
National Geography Standards Index from the National Geographic Society:
“Geography is for life in every sense of that expression: lifelong, life-sustaining, and life-enhancing.”
World History For Us All
Offers a powerful, innovative model curriculum for teaching world history in middle and high schools:
"World History for Us All is a national collaboration of K-12 teachers, collegiate instructors, and educational technology specialists. It is a project of San Diego State University in cooperation with the National Center for History in the Schools at UCLA."
National Council for the Social Studies
NCSS has a searchable database of teaching activities. This is a good website for teachers and students. It provides free resources relating to everything about social studies.