Dr. Cathy Marks Krpan has been selected as the 2021 recipient of the Margaret Sinclair Memorial Award Recognizing Innovation and Excellence in Mathematics Education. A former classroom teacher and district education consultant, Cathy Marks Krpan is a professor at the Ontario Institute for Studies in Education where she teaches graduate courses in mathematics education. Cathy often advises educators and school districts across North America, Asia, and Europe on effective teaching and learning strategies in mathematics. Her current research projects focus on the development of argumentation in elementary classrooms and the implementation of think-alouds to deepen student learning. An award-winning author and educator, Cathy’s recent publication, Teaching Math with Meaning, explores practical ways to foster teacher and student self-efficacies in mathematics. She enjoys conducting research in classrooms and districts alongside teachers, students, and curriculum leaders.