People take in new material differently. Some understand a diagram at a glance. Some need to talk an idea through. Some want the manual, and some just want to try it with their own hands. A course built for only one kind of learner quietly leaves the others behind.
We design against that, deliberately. The VARK model, published by the educator Neil Fleming in 1987, describes four learning preferences, Visual, Aural, Read/write and Kinaesthetic. In plain terms, that means seeing, hearing, reading and doing, and most people use a mix.
So every course we build offers more than one route to the same understanding. A learner can meet the material in the way that suits them, and a trainer never has to teach to the middle and hope the rest keep up.