YAN PING XIN, PhD, is a professor in the Department of Educational Studies, Purdue University, 100 North University St, West Lafayette, IN 47906-2098, USA; email: yxin@purdue.edu. Her primary expertise is within the area of mathematics problem solving involving at-risk students. Dr. Xin’s research is referenced in sources such as the National Mathematics Panel Final Report, the What Works Clearinghouse, and the Institute of Education Sciences Practice Guide. The Conceptual Model-based Problem Solving she pioneered is included in National Council of Teachers of Mathematics’ publication “Useful and Useable Research Related to Core Mathematical Practices.” Dr. Xin is principal investigator of three National Science Foundation funded projects. One of the projects addresses multiplicative reasoning/problem solving, and another project focuses on additive reasoning/problem solving. She has over 100 publications including peer-reviewed journal articles, book chapters, and conference proceedings. She has also published two books:
*Conceptual Model-Based Problem Solving https://www.springer.com/gp/book/9789462091047
*Enabling Math Learning of Struggling Students: https://link.springer.com/book/10.1007/978-3-030-95216-7?sap-outbound-id=7E32E7FFB78A797BBEFBA72835AD52D36FCB763C
YAN PING XIN, PhD, is a professor in the Department of Educational Studies, Purdue University, 100 North University St, West Lafayette, IN 47906-2098, USA; email: yxin@purdue.edu. Her primary expertise is within the area of mathematics problem solving involving at-risk students. Dr. Xin’s research is referenced in sources such as the National Mathematics Panel Final Report, the What Works Clearinghouse, and the Institute of Education Sciences Practice Guide. The Conceptual Model-based Problem Solving she pioneered is included in National Council of Teachers of Mathematics’ publication “Useful and Useable Research Related to Core Mathematical Practices.” Dr. Xin is principal investigator of three National Science Foundation funded projects. One of the projects addresses multiplicative reasoning/problem solving, and another project focuses on additive reasoning/problem solving. She has over 100 publications including peer-reviewed journal articles, book chapters, and conference proceedings. She has also published two books:
*Conceptual Model-Based Problem Solving https://www.springer.com/gp/book/9789462091047
*Enabling Math Learning of Struggling Students: https://link.springer.com/book/10.1007/978-3-030-95216-7?sap-outbound-id=7E32E7FFB78A797BBEFBA72835AD52D36FCB763C