Helen Chan has 30+ years of experience in K-16 mathematics education, including more than a decade with the Department of Mathematics at University of California, Los Angeles. She is an experienced practitioner in Southeast and Southwest Los Angeles schools and has taught mathematics courses for future elementary and middle school teachers and courses for current elementary school teachers within the UCLA Mathematics Department. She is a published National Council of Teachers of Mathematics author and has authored numerous mathematics lessons and courses for current teachers. She is the author of Smarter Balanced Performance Tasks and Evidenced Based Selected Response Tasks for use on summative statewide assessments across more than 34 U.S. States. Chan is also a 2019 Johns Hopkins Center for Talented Youth Sarah D. Barder Fellow.