What is math identity and why does it matter? This session will help participants think about their own identity around mathematics and the identities of their students. We will use personal stories and research-based definitions and practices to examine the concept of personal and social identity, particularly math identity. Participants will understand what math identity is, different ways that it is formed with a focus on messages/experiences at home, messages from the media, and messages/experiences from teachers), why positive math identity matters, and strategies to help students form a positive math identity.