Dr. Seashore studies the use of formative assessment in mathematics education both at the K-12 and college levels, specifically focusing on how teachers learn to elicit and leverage student thinking to promote equity and support excellence for all students. Dr.Seashore has taught middle school, high school, undergraduate and graduate students. Dr. Seashore also serves as co-director of the Bay Area Mathematics Project at Lawrence Hall of Science, providing site-based professional development and intensive summer institutes for K-12 mathematics teachers throughout the Bay Area.