The guided experimentation method requires that students learn how a database works by generating and testing hypotheses about it (i.e., become skilled at strategies of experimentation). These strategies are essential to learning by inquiry, which is linked to argumentation. We conducted a quasi-experimental field study to show that students who experimented with a library database in a structured manner (n = 60) wrote better argumentative papers than those who did not (n = 29). Future research should examine whether those who approach a task with the aim of learning it benefit more from opportunities to learn from experimentation with it.