21st century classrooms are different from the traditional high school classroom. The teacher is not the focal point of learning and the students take the lead role. Technology integration is a major component to this shift in teaching style. The inclusion of technology into the classroom and how it influences teaching practice and student engagement was researched for this study. The Director of Technology and building administration from a suburban high school in Southeastern Chester County implemented a grant from Pennsylvania's Department of Education called the "Classrooms for the Future" (CFF) grant. The teachers of English, math, science, and social studies teachers were recipients of the grant and received the Smart Classrooms. The grant allowed for an influx of technology, staff development, and online courses to enhance the teaching and learning process. Teaching practice and student engagement were studied to make a determination if technology use created a positive change. Longitudinal and cross-sectional data were collected from a variety of sources including the student body and teaching staff that participated in CFF. The results indicated that there was a positive relationship between teaching practice and student engagement as well as technology use and student engagement. Recommendations of further implementation and future research studies were discussed. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]