Exercises can belong to two categories:

1) The available time to solve the exercise is fixed. As soon as the student opens an exercise a countdown starts. The countdown is visible on the exercise page. When the time expires, it is not possible to change the solution anymore. If no solution was submitted because of time expiration, this information should be available to the instructor.

2) The time taken to solve the exercise is measured. The increasing clock with the time can be optionally shown. The instructor obtains the solution of each exercise and the time taken to solve it. Optionally, a maximum amount of time can be set, like in case 1.

In both cases exercises are sequential, i.e. once an exercise is solved/expired, students must proceed to the next one and cannot work on the first exercise anymore.

Submitted by Guido on 8 November 2013 at 20:31

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