This document discusses tools for assessing cognitive outcomes of service-learning programs. It begins by explaining the importance of assessing service-learning and then provides a review of available assessment tools. The tools are organized into three categories: research scales, written essays/protocols, and interviews/qualitative approaches. Several tools are described in detail, including the Cognitive Learning Scale, Problem-Solving Analysis Protocol, and Problem-Solving Interview Protocol. The conclusion emphasizes that systematic assessment can improve service-learning programs and better demonstrate their impact on student learning.