In one aspect, a mobile device comprises a local content store, one or more media playback components, one or more content capture components, and an instructional module agent comprising an authoring application and a playback application. The authoring application is configured to allow an author to create and edit instructional modules each comprising one or more media playback steps, each step comprising media that can be displayed or played, and to use the content capture components to capture content, store the captured content in the local content store, and configure at least one of the steps to display or play the captured content using the media playback components. The playback application is configured to play the instructional modules using the media playback components. The instructional module agent can be configured to respond to the creation and/or editing of an instructional module using the authoring application by automatically uploading at least a portion of the instructional module to a content repository stored on one or more computer servers.