If online classrooms are to replace or supplement traditional classrooms,then the responsibility falls to the advocates of online learning to ensure thatpedagogically sound practice guides the design and use of online technolo-gies. The question of whether even traditional classrooms manifest soundpedagogical practice notwithstanding, it would be remiss for advocates ofonline learning to promote it on the basis of expediency and not on quality.Therefore, in this article, we describe five principles of instruction that havebeen shown by empirical studies to promote deep and durable learning andthen provide ways in which each of these principles can be embedded in the online . We will stress ways in which the online can be even more conducive than traditional classrooms to using these learning