Zearn Math is a coherent and rigorous K-5 curriculum delivered in a personalized rotational model. Zearn Math is designed so that each day, students work through engaging digital content at their own pace and learn targeted lessons with their teacher and peers. Zearn Math is built on the Universal Design for Learning (UDL) framework, a set of research-based guidelines for developing flexible learning environments that accommodate individual learning differences. Zearn Math aligns with UDL principles by providing students with multiple ways of acquiring knowledge, showing understanding, and engaging in learning. Students learn by demonstrating their math thinking with concrete and virtual manipulatives, explaining their reasoning aloud and on paper, and receiving personalized support throughout their learning.