This study explored how students viewed the role of ideas for knowledge work and how such a 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.