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CodeWorkout is an online drill-and-practice system with course management features that aims to address these issues. CodeWorkout hosts an online repository of programming questions that instructors can incorporate into their courses. It also provides instructors with a facility to create their own programming questions so that exercises can be tailored according to the needs of the class. CodeWorkout has an open gradual engagement model that allows students who are not enrolled in a course to use it. CodeWorkout also creates an open environment for instructors to collaborate by sharing exercises that they create. CodeWorkout has been used in four courses at Virginia Tech. 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It also provides instructors with a facility to create their own programming questions so that exercises can be tailored according to the needs of the class. CodeWorkout has an open gradual engagement model that allows students who are not enrolled in a course to use it. CodeWorkout also creates an open environment for instructors to collaborate by sharing exercises that they create. CodeWorkout has been used in four courses at Virginia Tech. 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