Two-column notes is a note-taking strategy that divides a page into two columns for organizing information from texts. The left column is for main ideas and concepts, while the right column contains supporting details. This strategy helps analyze structured readings. It requires readers to focus on important elements and how they are organized. Various forms include main idea-detail, opinion-proof, hypothesis-proof, problem-solution, and process notes. Teachers should model the strategy's use and explain why it was chosen before having students practice it independently during or after a reading as an assessment of their comprehension.