Findings from a single research study can tell a lot, but a meta-analysis of findings from a number of studies can tell even more. In "A Theory-Based Meta-Analysis of Research on Instruction," Robert J. Marzano analyzed the results of more than 100 research reports on instruction, involving more than 1.2 million subjects. The goal of the analysis was to identify those instructional strategies that have a high probability of enhancing student achievement for all students in all subject areas at all grade levels. Based on this meta-analysis, Marzano, Debra Pickering, and Jane Pollock identified and subsequently reviewed nine categories of instructional strategies that are most likely to lead to enhanced student achievement in their book, "Classroom Instruction That Works: Research-Based Strategies for Increasing Student Achievement." Many teachers are using these strategies, and they are asking how technology can be integrated with these strategies to improve student learning. This article reviews the research-based instructional strategies and gives concrete examples of readily available technology that support them.