This guide provides Maryland teachers with information regarding how to evaluate and improve service-learning. Seven suggested practices for school-based service learning were derived from interviews with 80 Maryland teachers actively engaging their students in service learning. These seven best practices, which might provide a framework for development of a quality service-learning program, include: (1) meet a recognized need in the community; (2) achieve curricular objectives throughout service-learning experience; (3) reflect throughout service-learning experience; (4) develop student responsibility; (5) establish community partnerships; (6) plan ahead for service-learning; and (7) equip students with knowledge and skills needed for service. Two or three instructional strategies are given for carrying out each practice. An appendix includes a glossary of terms, other service learning resources, and a materials order form. (MM)