Efficacy Study Validation Summaries OGAP Math Professional Learning (The Ongoing Assessment Project) OGAP Math meets national ESSA evidence standards with an ESSA rating of STRONG and the 2nd highest effect size. Learn more about this incredible professional learning system here. Download the Efficacy Study Validation Summaries about OGAP Math Professional Learning from the research [...]

New Publication on OGAP Research Pathways to performance: The experimental impacts of learning trajectory-oriented formative assessment in mathematics. American Journal of Education, 130 (4). Supovitz, J. A., Ebby, C.B., and Collins, G. (2024).

NEWS RELEASE FOR IMMEDIATE RELEASE March 11, 2024 BW Walch Welcomes Jessica Jeffers as Division Manager for its Rapidly Expanding OGAP Division PORTLAND, Maine — BW Walch, a leading provider of mathematics resources and professional development, is thrilled to announce the appointment of Jessica Jeffers as the Division Manager for our [...]