For educational technology integration in content disciplines to succeed, teachers and teacher educators need clear standards delineating why, how, where, and how much educational technology they should include in their teaching. This paper examines the visions offered by current science, mathematics, and educational technology standards for educational technology integration in K-12 schools. Since national assessments exert a profound influence on what teachers and students choose to teach and learn, the vision of educational technology use supported by national assessments is also examined. The National Council of Teachers of Mathematics Standards (NCTM, 2000. "Principles and Standards for School Mathematics." Retrieved April 6, 2002 from http://standards.nctm.org), the "National Science Education Standards" (National Research Council (NRC) 1996. "National Science Education Standards." Available at http://books.nap.edu/catalog/4962.html), and the "National Educational Technology Standards" (International Society for Technology in Education (ISTE) 2000. "National Educational Technology Standards for Students: Connecting Curriculum and Technology," ISTE, Eugene, Oregon) provide different visions of educational technology use in the classroom. In addition, the current technology use policies for national assessments in science and mathematics, in particular the college admission tests (ACT, SAT I and SAT II subject area tests), Advanced Placement (AP) course assessments, and the Praxis Series assessments indicate that while mathematics assessments often recommend or require the use of educational technology, few science assessments permit the use of educational technology by students. Recommendations are offered for science educators regarding teacher preparation for the technology-rich classrooms of the future.