Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for adaptive educational activities are disclosed. In one aspect, a computer-implemented method includes receiving, by a computing device that is configured to grant a given user access to a first group of activity modules based on a classification of the given user, user data and classification data. The method includes granting the user access to a first activity module and a second activity module, and preventing the user from accessing a third activity module. The method includes receiving interaction data based on the user interacting with the first activity module, and determining that the interaction data indicates an improper classification of the user. Based on the interaction data, the method includes maintaining the classification of the user, granting the user access to a fourth activity module, and preventing the user from accessing the second activity module.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a story development tool. In one aspect, a method includes presenting, for selection by a user, one or more settings and one or more characters. The method further includes receiving a selection by the user of a setting and a character for three or more acts of a story, wherein one of the three or more acts is a beginning act and another one of the three or more acts is an ending act. The method further includes receiving a data identifying a particular action. The method further includes receiving data indicating a transition between two of the three or more acts, wherein the transition is triggered by the particular action. The method further includes determining whether there exists a path from the beginning act to the ending act based on the data indicating the transition.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a literature card game. In one aspect, a method includes receiving a request to view a book; displaying the book on a display device. The method further includes displaying an activity indicator at a location in the book. The method further includes receiving a selection of the activity indicator. The method further includes displaying an activity on the display device, the activity being associated with the book and the location of the activity indicator within the book. The method further includes receiving a response to the displayed activity from the user; determining that the response to the activity meets specified criteria. The method further includes awarding a playing card that is associated with the book, the playing card configured to be used in a card game played by the user.