This document discusses using wikis in K-12 education. Wikis allow students to easily edit web pages online and trace the history of edits. Wikis are a natural technology for students who already use blogs and social media. While informal social interactions differ from formal academic work, wikis provide a way for students to formally collaborate online. The document provides examples of history and Holocaust-related projects where students used wikis to research topics and create narrative timelines. It also discusses design patterns, project processes, and student reflections on how the projects increased their understanding and perspective on decision-making.