It is important to teach students to improve their questions. Teachers can teach students how to simply produce questions, then teachers show students how to improve their questions. Students can improve their questions from having close-ended questions to having open-ended questions. After tweaking the questions, students prioritize the questions to see which ones are most important. The final step is how to use the questions that the questions formulated in the classroom setting.
 

For more information on prioritizing questions, here are some additional resources: