This article reports findings from a quasi-experimental study of the impact of a summer robotics program for urban middle-grade students. The study focuses on student engagement, measured by school attendance rate the year following the program. Program students, who were nearly all low-income minority students, were matched to comparison students who did not attend summer school. After establishing baseline equivalence in attendance between the groups, the study found a statistically and educationally significant program effect on school attendance the following year, suggesting that high-interest hands-on educational activities can help maintain student engagement in school.