In the example below, the user interface is an elevator panel. Learners choose a floor on the panel, ride up to the selected floor and partake in learning activities on each floor. As they climb higher in the building, the activities become more advanced. The elevator panel on the left doesn’t correspond to a typical mental model of how an elevator works. When the user realizes that going up to a higher level lesson is represented as going down the elevator, it’s confusing. When we stick to conventions, as shown in the example on the right, we’re modeling the way most people think.
