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Using the Concept of Combinations in E-learning Interactivities

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Using the Concept of Combinations in E-learning Interactivities

Many organizations these days prefer e-learning as a training medium because it is the most cost-effective and efficient way to impart knowledge among learners. Recently, I have worked for a project on procurement policy where the learners were needed to be trained on their roles and responsibilities in the organization. For that, we developed a course that has a “decision point” to view their responsibilities.

Let us have a look at what decision point is and what challenges I faced in developing the course and how we overcame it.

What is a decision point?

Each employee has one or more roles to be played in the organization. The decision point is where the learner has to choose roles that were applicable to him. The learner could choose one or more than one in this case.

What is a decision point?

Challenges in creating the course:

The major challenge in creating such a course is that the learner needs to be shown the slides that are related to his chosen roles. The learner can choose only one role or he or she may choose two roles, or three or all the four. Whatever role he has chosen, he needs to be directed to those slides that explain the responsibilities of those roles.


For this, we used the concept of “Combinations” in mathematics to select the combination of roles. Since we have four roles (suppose a, b, c, d), we get a total of 14 combinations in this case. “A learner can select role a, b, c, d or a + b, or a + c, or a + d and so on.” So we have to take 14 arrays that have slide numbers of these 14 combinations.

So by now we have got 4 roles and 14 combinations or 14 arrays. So let’s look at how to navigate through these 14 combinations.

First, we need to take four buttons for the four roles that can be selected or de-selected if required. We have to take four Boolean variables for selection and de-selection of these four roles. Upon selection of the role(s), the related Boolean variable(s) becomes true.

Here we are going to check the number of roles that are selected according to the four Boolean values. If the first two values are true, then the first two roles are selected and the array related to that combination will be played and so on. For instance, take a look at a combinations and Boolean variables created below:

Combinations and Boolean variables

So by using this, we are going to create the combinations in the decision point slides in e-learning. I hope you find this blog informative. Please share your ideas on this.

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