Educators have known for some time now that a one-size-fits-all approach to learning does not lead to the level of student engagement and academic success that schools strive to achieve. In their search for a more customized approach to delivering instruction, they've explored project-based learning, addressed different learning styles, and increased collaborative among students. For the most part, schools have incorporated the 21st century instructional techniques and tools as add-ons to the teacher-centric 19th century classroom structure, in which the majority of the curriculum is pulled from a textbook, and, despite the best intentions of all involved, most students learn the same thing in the same way at the same time. Enter personalized learning, a student-centered teaching and learning model that acknowledges and accommodates the range of abilities, prior experiences, needs, and interests of each student--with the goal of moving every student to a higher standard of achievement. By marrying the principles of personalized learning with the tools of technology, some educators believe that they have a chance to create the kind of customized learning environment that can finally break schools out of the industrial-age model of education to bring about true 21st century school reform. In this article, the author describes personalized learning and explains why technology is so central to its outcomes. She points out that true student-centered learning has a lot of support among education leaders, but it can not happen without the right technology infrastructure to drive it. And the technology may be ready to deliver on its promise.