Highlighting isn’t intuitive. Students commonly have difficulty spotting key ideas, opting instead to indiscriminately mark up the text or selectively highlighting intriguing but extraneous details. As novice learners, they tend not to think about the larger organizational structure of a text, or the importance of distinguishing main ideas from supporting details. To students, of course, what they’re doing seems productive. The act of tracking each digested line of text with bright strokes of th