Thoughtful questions: effective ways to ask questions that foster engagement and trust. What does it mean to think? Some people would like to be able to think better or, more often, they want the thinking of others to improve. But research shows that everyone is capable of thinking. The problem is to prevent teachers from foreclosing the possibility of this happening. The right kind of questions open doors for student participation. The right questions focus the student's attention on applying their current understanding to the content or problem. The right questions are discoverable, that is, they have subsequent paths that a teacher can follow to lead a student to find an appropriate answer using available resources (Socratic). Every success on one of these problems is a lesson to the student that he or she knows how to think. (And every failure, an opposite lesson.) Note that none of these tutorial questions require recall of facts or information (instructional questions). • Discoverable tutorial questions: These eleven question formulations meet the criteria of being perception-based and discoverable. The answers to these questions are found in shared experience, so all students, who may not initially respond acceptably, can be referred to the available evidence to find appropriate answers.