A public workshop will be organized that will bring U.S. and Chinese experts on mathematics education together to discuss professional development methods and techniques commonly used in their countries. The workshop will feature invited presentations and discussion that will focus on the teacher development process used in the U.S. and China, and how the professional lives of teachers are structured to receive ongoing professional development. The activity will bring together U.S. and Chinese experienced and highly qualified teachers that provide professional development (such as master teachers, mentors, or coaches). Comparing and contrasting the roles and status of master teachers in both countries will be one of the main goals. An individually-authored workshop summary and a 6 to 8 minutes video with highlights of the event will be produced.