Document retrieval course aims to cultivate students' information literacy, and the discussion of its curricular design has been a hot research topic. In order to improve the students' interest and initiative of learning, we integrated teaching with practices. Through the correlation analysis between the final exam score(score 1), the final exam time(time 1), ordinary practice score(score 2) and ordinary practice total time(time 2), we found that the final exam score's difference between the electives, requ...