Tcherly:

The use of online video lectures in universities, primarily for content delivery and learning, is on the rise. Instructors’ ability to recognize understand student learning experiences with lectures, identify particularly difficult or disengaging thereby assess overall lecture quality can inform their instructional practice related such lectures. This paper introduces Tcherly, a teacher-facing dashboard that presents class-level aggregated time series data students’ self-reported cognitive-affective states they experienced during lecture. Instructors evaluate improve We report detailed iterative prototyping design process Tcherly Dashboard involving two stakeholders (instructors designers) informed various decisions dashboard, also provide usability usefulness data. demonstrate, real-life examples generated by researchers based collected from six courses 11 how assist instructors understanding evaluating associated materials.