Explore Learning contracted with LearnPlatform, a third-party edtech research company, to examine the relationship between student usage of Frax and math learning outcomes. Frax is a game-based, adaptive technology designed using the latest research on effective fractions instruction to support all learners in meeting early standards for fractions in elementary grades. This study occurred during the 2021-22 school year and analyses included 658 third and 653 fourth-grade students from a school district in California using a retrospective and correlational methodology. The sample's largest racial/ethnic group is Hispanic (53%), and over one-third of students (39%) qualified for lower socioeconomic status programs. Researchers examined relationships between Frax usage and STAR Math scaled scores to understand the impact of the program on students' math achievement outcomes. After accounting for baseline STAR Math results, students who completed more missions in Frax, had higher math achievement (r = 0.13, p < 0.01). Greater Frax usage was also statistically significantly related to higher math scores for low-achieving students and lower socioeconomic status students. This study provides results to satisfy ESSA evidence requirements for Level III (Promising Evidence) given the study design and positive, statistically significant findings. [This paper was prepared for Explore Learning by LearnPlatform.]