Bharaj, Pavneet KaurGalindo, EnriqueLiu, JinqingBorgioli, Gina2021-10-262021-10-262020-12-23Bharaj, P. K., Galindo, E., Liu, J., & Borgioli, G. (2020). A collaborative professional development model: Promoting shifts in classroom practice. Mathematics Education Across Cultures: Proceedings of the 42nd Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education, 1838–1842. https://doi.org/10.51272/pmena.42.2020-299https://hdl.handle.net/1805/26864To ensure conceptual learning in mathematics, teachers must shift many aspects of their instructional practices. We report on a two-year endeavor using a collaborative and responsive professional development model to help elementary school teachers enact seven shifts in classroom practice. We share evidence of teachers addressing the instructional shifts and discuss the promise of the approach used for those interested in co-constructing collaborations between and among universities and school districts.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalclassroom practiceeducationcollaborative professional development modelArticle