This report provides national data on the availability and use of educational technology among teachers in public elementary and secondary schools during the winter and spring of 2009. The data are the results of a national teacher-level survey that is one of a set that includes district, school, and teacher surveys on educational technology. Every year between 1994 and 2005 (with the exception of 2004), the Office of Educational Technology (OET) in the U.S. Department of Education asked the National Center for Education Statistics (NCES) to conduct a survey of public schools to track access to information technology in schools and classrooms. NCES used its Fast Response Survey System (FRSS) to conduct these surveys. For fall 2008, this OET-sponsored technology study was redesigned and expanded to incorporate surveys at the district, school, and teacher levels. These three surveys provide complementary information and together cover a broader range of topics than would be possible with one survey alone. Prior to 2008, the surveys focused on computer and Internet access and use, as well as procedures to prevent student access to inappropriate material on the Internet and teacher professional development on technology use. The set of 2008 surveys collected data on availability and use for a range of educational technology resources, such as district and school networks, computers, devices that enhance the capabilities of computers for instruction, and computer software. They also collected information on leadership and staff support for educational technology within districts and schools. During the design phase for the set of 2008 surveys, research was conducted to determine how specific topics and survey questions should be distributed across the three surveys. The surveys were developed to reflect how information on educational technology is kept within most public school systems. This report presents results from the teacher-level survey, including information on the use of computers and Internet access in the classroom; availability and use of computing devices and software, teachers' use of school or district networks (including remote access); students' use of educational technology; teachers' preparation to use educational technology for instruction; and technology-related professional development activities. Appendices include: (1) Standard Error Tables; (2) Technical Notes; and (3) Questionnaire. (Contains 24 tables and 12 footnotes.)