Dr. Xiangquan Yao joined the Department of Curriculum and Instruction at Penn State in 2018 as an assistant professor. He completed his PhD work in mathematics education at Ohio State University. Dr. Yao's research interest considers the nature of mathematics thinking with technology and mathematics understandings for teaching with technology. His current work focuses on learners’ engagement in mathematical generalizing when using technological tools that are capable of performing mathematical procedures (e.g., graphing, symbolic algebraic manipulation, arithmetic calculations, constructing and manipulating geometric figures, and statistics calculations and data display). He also investigates preservice mathematics teachers’ technological, mathematical, and pedagogical knowledge for engaging learners in making generalizations with technology.