Cao Yiming is a distinguished professor in School of Mathematical Sciences at Beijing Normal University, China. He is also the leader of the revision group of compulsory education mathematics curriculum standard. During the past twenty years, he has explored how to support students' mathematics learning through teachers' development of high-quality instructional practices. He has worked with different school systems and teachers throughout China, the USA, Australia, Japan, Finland, and Germany. He also has research collaborations with scholars from the UK, Austria, Hungary, and Singapore. In 2018, he published a book The 21st Century Mathematics Education in China (Springer), which was co-edited with Frederick K.S. Leung and provided a comprehensive introduction to the status of development of Chinese mathematics education in the twenty-first century.