Ruth Harbin Miles coaches rural, suburban, and innercity school mathematics teachers. Her professional experience includes coordinating the K-12 Mathematics Teaching and Learning Program for the Olathe, Kansas Public Schools for over 25 years; teaching mathematics methods courses at Virginia's Mary Baldwin College and Ottawa, Mid America Nazarene, St. Mary's, and Fort Hays State universities in Kansas; and serving as president of the Kansas Association of Teachers of Mathematics. She represented eight midwestern states on the Board of Directors for the National Council of Supervisors of Mathematics (NCSM) and has been a co-presenter for NCSM's Leadership Professional Development National Conferences. Miles is the coauthor of "Walkway to the Future: How to Implement the NCTM Standards" (Jansen Publications, 1996), and is one of the writers for NCSM's "PRIME Leadership Framework" (Solution Tree Publishers, 2008). As co-owner of Happy Mountain Learning, she specializes in developing teachers' content knowledge and strategies for engaging students to achieve high standards in mathematics.