This document provides strategies for developing creativity and critical thinking in the classroom. It first defines creativity as developing new ideas through combining existing knowledge in novel ways. Critical thinking is deciding what to believe or do in a reasonable, reflective manner. To develop creativity, the document recommends allowing open-ended questions, interest-based groups, student-designed experiments, and judgment-free discussions. To develop critical thinking, it suggests activating prior knowledge with low-level questions, cooperative learning groups, Socratic seminars, justifying answers, creating a hierarchy of questions, and allowing students to retest hypotheses after failure.