This article presents a rubric to help instructors conceptualize, implement, and assess service-learning courses. Using a first-letter mnemonic of O.P.E.R.A., the rubric incorporates principles of best practice to provide a framework for enumerating objectives (O), exploring community partnerships (P), identifying the type of service learning students will be engaged (E) in, facilitating reflection (R), and assessing (A) to what extent learning objectives were met. (Contains 1 figure.)