1. The presenters flipped two library instruction sessions by having students complete activities before or after class. In one version, students reviewed a LibGuide before class and completed an individual exercise. In the other version, students watched screencast tutorials before class and completed a team-based exercise during class. 2. Assessment of student work found that the version using a LibGuide before class was more effective, possibly because the LibGuide could be referenced during class while the screencasts required memorization. 3. Flipping the classroom shifts lower-level learning outside of class, allowing more class time for activities like group work and discussions that promote higher-level thinking.