If the student is not available at the times a class is offered, the course simply cannot be taken. Time can be a barrier to inclusive education in other ways, as well. This educational model holds time constant and allows learning to vary. Limiting educational achievement by restricting time is a major barrier to providing effective learning opportunities. Time can also be a constraint for class participation.
Academic achievement is associated with interaction.
Classroom research shows that, irrespective of class size, interactions between faculty and students are limited to a few individuals. Information technology can remove many of education's time restraints. Classes can be available 24 hours a day. Interactivity moves beyond the traditional constraints of the classroom. It would be easy to assume that the dominance of lecture indicates that almost all students have the same learning style and that lecture is their preferred method.