This study explored how students viewed the role of ideas for knowledge work and how such view was related to their inquiry activities. Data mainly came from students' online interaction logs, group discussion and inquiry, and a survey concerning the role of ideas for knowledge work. The findings suggest that knowledge building was conducive to developing among students a more informed view of ideas that sees ideas as improvable, real-world objects for collaborative and creative knowledge work, rather than merely as abstract thoughts for achieving an individual's own knowledge acquisition. Moreover, it was found that how a group views the role of ideas was associated with how they improve the quality of the ideas during their group inquiry.