Because creativity is an essential 21st century skill that must be developed in gifted and talented student populations, it is important for gifted and talented programs to nurture mathematical creativity. To shed light on this topic, this article explores three questions: What is mathematical creativity? How can we develop students' mathematical creativity? How can educators improve their own ability to develop mathematical creativity? Integrating insights from the literature and a research project examining mathematics differentiation, the article highlights the importance of explicitly teaching creative thinking skills, using open-ended mathematical problems to foster creative problem solving, and differentiating learning opportunities to challenge diverse learners.