Rachael M. Welder, Ph.D., is an Assistant Professor of Mathematics Education in the Department of Mathematics at Western Washington University. She teaches content and methods courses for preservice elementary and middle school teachers. Her research focuses on the work of mathematics teacher educators, particularly in regards to the ways in which they can facilitate prospective elementary teachers’ development of Mathematical Knowledge for Teaching and support meaningful relearning of mathematical content in university coursework. 

Dr. Welder is currently involved in multiple, cross-institutional, collaborative efforts to (a) examine the design and implementation of tasks in mathematics courses for elementary teachers, (b) conceptualize the knowledge needed by mathematics teacher educators who teach such courses, and (c) seek innovations for supporting the work of these mathematics teacher educators. She is currently serving as a guest editor for the Mathematics Enthusiast Journal where she is co-developing a special issue on, “Supporting Mathematics Teacher Educators’ Knowledge and Practices for Teaching Content to Prospective (Grade K-8) Teachers.”

For more information please see publications, presentations, and teaching experience or view her academic research profile on ResearchGate.