An extensive body of empirical evidence shows that math skills at school entry are the strongest predictor of later academic success and educational attainment, but many children lack the opportunity to build the math skills needed for future success. Children who begin school with relatively low levels of math knowledge are at risk of falling behind, and 60% of fourth graders in the U.S. are not proficient in math. As many children enter school unprepared for math, teachers face challenges in appropriately personalizing and individualizing learning for each student in their class. Educational technology can help teachers seeking to provide tailored learning experiences for students, and game-based digital curricula that involve play can promote motivation and learning. To understand the impact of one such program, Age of Learning, Inc.'s, "My Math Academy," in developing early elementary children's math skills and replicate a 2017 study on an earlier version of the program, Age of Learning partnered with WestEd to conduct a randomized control trial. For this study, WestEd researchers led the data collection and collaborated with Age of Learning researchers to analyze and interpret the data.