Beomseok Seoa*, Lin Linb & Jia Liaa Department of Statistics, The Pennsylvania State University, University Park, PA;b Biostatistics and Bioinformatics, Duke Durham, NC

Co-teaching is regularly paired with school improvements and educational reforms, yet research does not clearly separate the challenges of co-teaching for teacher professional development, course improvement wider reforms. We explored how emerged what barriers teachers experienced as meaningful their after a national core curriculum reform. Two cross-sectional data sets were collected. Three qu...