Exercise sets are used to create multi step questions (like step a, step b, step c) where you want the variables to remain equal while the exercises in the set are played. Moreover, sets can be used to create main and sub steps, like step a -> when solved go to step b, else there is no solution button, but you have to do exercise a1, a2 and a3 first. Because exercises in a set always belong together, you can only add a whole set to a package, not individual exercises. If you want this, copy the exercise and select 'New set' in the pop up.
Creating a set
Every exercise is in a set already. If you want to add an exercise to an existing set, either copy the exercise and choose 'Add to this set' in the pop up. Or, if you do not want a copy, you can select an existing set when you create a new exercise under 'Set'.
Between a set all variables are kept the same: when you save them in one Exercise, they are saved in all exercises in the set.
In every exercise in the set, you can manage the set order. Go to Exercise tab Order and drag and drop the correct order for your set. Note that only published exercises appear in the set order list.
Creating main and sub steps in a set
There are three kind of sets:
Type 1 - is the default, and only has main steps like
Type 2 - only has one main step with multiple sub steps
a. (when a student answer this correctly, he will finish. Otherwise he will have to choose 'Step by step' that bring him to a1.),
To accomplish this, go to edit Exercise a. and use the General tab where you select Exercise a. (himself) in 'Next step'. Exercises a1, a2 and a3 will automatically become sub steps
Type 3 - multiple main steps and sub steps
a. (when a student answer this correctly, he will go to b. Otherwise he will have to choose 'Step by step' that bring him to a1.),
To accomplish this, go to edit Exercise a. and use the General tab where you select Exercise b. in 'Next step'. Exercises a1, a2 and a3 will automatically become sub steps.