The goal of this study was to further evaluate the impact of IXL on learning outcomes in math and ELA. Using a quasi-experimental design with matched treatment and control groups, we analyzed data from 296 public schools in Colorado during the 2018-2019 school year. The analysis of IXL Math included 186 schools (93 treatment, 93 control), and the…

The purpose of this study was to compare elementary classroom teachers' actual practice and perceived importance of English Language Arts professional development in five professional development dimensions: alignment, content and modeling, active learning, collaboration, and follow-up, in high and low mastery, low needs schools. The schools…