This document discusses approaches to assessing student effort and achievement in groups. It describes traditional teacher-centered assessments like observations and tests versus more innovative student-centered collaborative assessments. It outlines different methods of group performance evaluation, and steps to encourage a positive view of group evaluation. It also discusses combining individual and group performance evaluations through dual grading alternatives. Finally, it presents Kagan's reasons against group grading and his recommended alternatives like non-grade rewards and separate grades for collaborative skills.