This document discusses formative and student-centered assessment approaches that can be used at the classroom level. It defines formative assessment as a measure of what students know during a lesson to guide instruction, while summative assessment occurs at the end of a unit to determine understanding. The document recommends several student-centered assessment methods including self-assessment, peer assessment, process portfolios, and formative tests to provide timely feedback to students and teachers. It also discusses using learning preference cards, rubrics, and exhibitions as ways to assess 21st century skills and demonstrate mastery. The purpose is to promote deeper learning through feedback and opportunities for students to improve.