Linda Rosen is chief executive officer of Change the Equation. Dr. Rosen has a proven track record in providing leadership to the business community in its mission to improve science, technology, engineering and mathematics (STEM) learning. Her career has focused on scaling up research-based best practices, working with states and localities to implement these practices to ensure long-term sustainability and success. Previously, Dr. Rosen was the senior vice president for the National Alliance of Business, where she worked with companies to articulate their STEM vision for the 2001 Reauthorization of the Elementary and Secondary Education Act (No Child Left Behind). As Senior Advisor to U.S. Education Secretary Richard Riley, Dr. Rosen provided counsel on math and science, as well as STEM initiatives. She led the National Commission on Mathematics and Science Teaching for the 21st Century, also known as the John Glenn Commission.   Prior to joining the U.S. Department of Education, Dr. Rosen served as Executive Director of the National Council of Teachers of Mathematics, the largest professional association of teachers of math and teacher educators, and as the National Academy of Sciences’ Associate Executive Director of the Mathematical Sciences Education Board. Early in her career, Dr. Rosen was a teacher, having taught mathematics from high school through graduate school.