This document summarizes a workshop on making formative assessments more effective for students. It discusses why students are often reluctant to do formative work, and how formative assessments are sometimes poorly implemented. The workshop then presents five case studies of programs that successfully integrated formative assessments. Key principles for good formative assessment identified include: reducing summative assessments to make room for formative work; taking a whole-program team approach; providing developmental feedback; and designing formative assessments that are linked to summative assessments.