Perhaps more than any other subject, mathematics is sequential; students layer new concepts onto previous knowledge. The pace of moving forward with curriculum, therefore, is less important than students’ genuine mastery of foundational material. Teachers design learning experiences that make math intriguing, not fearsome, and provide students with the increasing opportunity to synthesize their learning. At Ursuline, students develop a robust problem-solving ability, with the emphasis on showing their thinking pattern rather than merely arriving at answers. In this rigorous curriculum, students progress from arithmetic to working with abstract number concepts in courses that challenge and encourage them to take risks while yielding the satisfaction that comes from successful engagement. Working with data in real-world applications, students become proficient at adapting multiple approaches to solutions.