This document discusses using concept mapping to capture conceptual change in students. Concept maps allow students to visually organize concepts and relationships, making their thinking transparent. The document outlines a process for using concept maps that includes having students individually map their initial concepts, then combine maps in groups and conduct research to update their maps. Examples are provided of students' concept maps of topics like the Middle Ages and Iraq at the start and end of a unit. Evaluating the maps can provide insight into a student's understanding, organization of knowledge, and how their conceptualization changes over time.