The document discusses green light and red light questions for research. Green light questions are open-ended and encourage investigation by asking why, how, to compare, contrast, describe, explain, predict, and rate. These questions help provide a bigger picture. Red light questions only allow for a one or two word answer, yes or no response, or only one answer. They do not help learn more information. The document then provides examples of questions and whether they would be rated green light or red light for research.