From the folks at the Center for Implementing Technology in Education (CITEd) comes Math Matrix, an online resource that aims to provide the most current snapshot of available technology tools used for K-8 mathematics instruction and the research to support their adoption in schools. The interactive Math Matrix currently reviews 29 different software programs and presents evidence for the effectiveness of their use in the teaching of math, especially for students with special needs or disabilities. The Matrix includes links to vendor web sites and a database of related research, including peer-reviewed and vendor-published research and evaluations of technology tools. Detailed citation and summary information is included for each article and will be updated quarterly. “The Math Matrix will be an invaluable tool for decision makers in school systems around the country. For the first time, educators and administrators have a simple, reliable way to get evidence-based research about technology instructional tools, helping them make smart purchasing decisions to support the teaching of math,” said Heidi Silver-Pacuilla, a research analyst for CITEd. Funded by the U.S. Department of Education’s Office of Special Education Programs, CITEd is a cooperative effort between the American Institutes for Research, the Center for Applied Special Technology, and the Education Development Center.