Jewish day schools want every child to succeed in their learning and social-emotional development. How can schools accomplish those lofty goals while teaching many students in the same classroom? This issue of Hayidion explores that conundrum and showcases various ways that learning can be differentiated to meet the needs, capacities, and interests of different students. Articles address differentiation within the classroom, and supporting teachers to learn, transition to, and apply methods of differentiation. Authors discuss the 'how-to' as well as the larger goals and vision.