World History and Geography - This resource for high school teachers includes a concise alternative textbook, instructional materials and activities. Teachers collaborate in developing effective educational tools. Internet Lessons for World History - Units that include art, creative writing and economic analysis, as well as a series of quizzes on ancient cultures. History Adventures - How to plan history adventures and themed treasure hunts to bring history alive. Thomas Jefferson Online - Enlightenment - Classroom activities from the Ken Burns' documentary site. Teaching Needham’s Puzzle - Fostering Historical Thinking - In this article, the author shares his teaching experience with regard to Needham's Puzzle and introduces online resources and teaching materials. A Book in Time - Chronological lists of books, crafts, maps, timelines, and other resources for social studies teachers and homeschoolers. U.S. History Lesson Plans and Resources - A collection of lesson plans and teaching resources covering a variety of topics and time periods including the Renaissance, the Civil War, Women's Suffrage, and the Korean War.