"C3.pdf" generally refers to the National Council for the Social Studies' C3 Framework, a guide designed to enhance K-12 history, civics, and geography education through an inquiry-based approach. It outlines a four-step Inquiry Arc focused on developing questions, applying disciplinary tools, evaluating sources, and taking informed action. Access the official C3 Framework document from the NCSS . College, Career, and Civic Life (C3) Framework