Lucy Rycroft-Smith is a writer, researcher, speaker and designer in mathematics education. She is studying for her PhD at the University of Cambridge, considering the idea of knowledge brokering—how, what, when, where and why we communicate research to mathematics teachers. Her other research interests include gender, sexualities and identity, feminism, decolonisation, curriculum design, board gaming, teaching discrete mathematics, representations of mathematics, maths and the arts, and professional development. She is the author of The Equal Classroom: Life-Changing Thinking About Gender (2019) and co-editor of Flip the System UK: A Teachers’ Manifesto (2017).