Lynn’s research focuses on the mathematical reasoning of young children. She has written many articles for research and professional audiences, particularly on the topics of algebraic thinking, spatial reasoning and patterning in the early years. She is a long-time member of NCTM and has served on a number of task forces and committees, including as editorial panel chair for Teaching Children Mathematics. Lynn teaches mathematics curriculum and pedagogy courses to pre-service and in-service elementary teachers and has won multiple teaching awards for this work.