When should I use tabbed presentations?

I will begin by distinguishing between what we call 'must know information' and 'good to know information'. Must know information is directly linked to the learning outcomes. This information must be presented upfront and the learner should not have to search for it. Good to information is information that the learner can view if he/she wishes to read a little extra about the topic. This information can be displayed as click to know text, hyperlinks, tabbed presentations and so on. This information must not be presented upfront as it is not crucial to the learning objectives. Another logic behind this is quite simple. Learners tend to miss clicking the other tabs, links, buttons. Therefore, any information that will influence the learning outcome must be presented upfront.