This paper presents a case on applying WebQuest, a model for constructivist inquiry-based learning, to facilitate the teaching and learning of queueing theory. The author is a faculty member in an information engineering department, teaching an undergraduate course titled Simulation and Statistical Analysis in which queueing theory is a key topic. In this paper, the author shares her experience of adopting WebQuest as a pedagogical tool. Overviews of constructivist pedagogies related to WebQuest, namely inquiry-based learning, collaborative learning, and scaffolding, are also provided. Instead of teaching the classic topic in an instructor-centered, direct instruction approach, the author constructed a WebQuest to help the students to desig...