Students take notes to learn what teachers know. Teachers give tests to learn what students know. Epigrammar developed the first tool to integrate students’ annotations with teachers’ assessments, supporting individualized instruction at scale. On the platform, teachers work with students on shared files— or”Epigrams”. Epigrammar’s patent-pending technology, developed at Princeton University, then captures data on the margins and uses artificial intelligence to illuminate common areas for academic growth. Thus, Epigrammar helps instructors cover concepts, grade assignments and create documents for class, granting administrators a means to debug learning at school.