"How to track and show progress to learners." recent demo

Hi

I just wanted to say that the demo about tracking learners progress misses a small trick.

In the demo the numeric variable is increased by one each time the user completes an activity.

If they were to visit an activity twice they would still increase their progress.

A true/false variable in each activity could be used as a conditional check to make sure each of the activities are completed.

TC