My teaching and research interests have led me to develoexpertise in Complex Instruction CI) a model for teaching developed by Elizabeth Cohen and Rachel Lotan at Stanford University. CI is a theoretical and practical framework for helping all students succeed in engaging rigorous mathematics. I work with preservice and in-service teachers to make sense of the theory and implement the tools of CI. If you want to know more, check out the book, Smarter Together! Collaboration and Equity in the Elementary Classroom.