Majority of students chose "C" or "D"
A 2019 WestEd study found schools that consistently used ST Math outgrew similar schools in statewide rank by 14 percentile points.†
Teomara Rutherford, Allison S. Liu, Arena S. Lam & Katerina Schenke (2020) Impact on mathematics self-beliefs from a mastery-based mathematics software, Journal of Research on Technology in Education