I am a third-generation educator and a scholar of annotation. My research explores how social annotation facilitates collaborative, open, and equitable learning. My interdisciplinary scholarship—which spans literacy studies, the learning sciences, and teacher education—has appeared in Journal of Literacy Research, Distance Education, and Information and Learning Sciences, among other journals. My book "Annotation" (The MIT Press, 2021) is an introduction to annotation as a genre—or a synthesis of reading, thinking, writing, and communication—and its significance in scholarship and everyday life. I am the co-founder, facilitator, and research director of the Marginal Syllabus, a social design experiment that sparks and sustains conversation about educational equity through collaborative technologies and partnerships. My research has been supported by a National Science Foundation Data Consortium Fellowship, a OER Research Fellowship from the Open Education Group, and as Scholar in Residence with the annotation organization Hypothesis. I began my teaching career in New York City Public Schools, and I earned my PhD (Curriculum and Instruction) from the University of Wisconsin-Madison.