This session will focus on the basics of using the OPTIC (Observation Protocol for Teaching in Interactive Classrooms) tool, which is a whole classroom observation instrument, developed for use in interactive classrooms, such as a POGIL classroom. OPTIC is an observation tool for: 1) the coaching and mentoring of learner-centered practitioners who use collaborative small groups, 2) experienced practitioners to obtain feedback on their facilitating, 3) administrators to aid in the evaluation of faculty who participate in learner-centered collaborative teaching styles, and 4) the documentation of collaborative small-group learning in a learner-centered classroom. By the end of this session, participants will be able to i) obtain an introduction to coding with the OPTIC tool ii)examine and interpret the meanings of the OPTIC Facilitator Actions Codes and the Interactions in the Classroom Codes iii)use the OPTIC tool while watching a video of a POGIL classroom and iv) consider the use of a pre/post observation discussion tool.