In this article, the author relates how a math-assessment software has allowed his school to track the academic progress of its students. The author relates that in the first year that the software was deployed, schoolwide averages in terms of national standing on the math ITBS rose from the 42nd to 59th percentile. In addition, a significant number of students became grade jumpers after the software had been installed. Because of the positive effects brought about by the software, the author concludes that the computer, the massive accumulation of performance data, and the descriptive power of standardized testing are among his most powerful allies as a teacher.