Blended learning is a formal education program in which a student learns at least in part through delivery of content and instruction via digital and online media with some element of student control over time, place, path, or pace. While still attending a “brick-and-mortar” school structure, face-to-face classroom methods are combined with computer-mediated activities. Blended learning is also used in professional development and training settings, as it can be used to translate knowledge into a particular skill that is useful and practical for a specific job. A lack of consensus on a definition of blended learning has led to difficulties in research about its effectiveness in the classroom.