The Tutorial - Learn to Play: Designing Tutorials for Video Games - page 34

To that end, when games demonstrate types of teaching that psychol-
ogists and educators have long since discarded as being ineffective, it
is hard not to notice. The worst part about this is that many of these
problems have a very easy fix. Visual-only teaching, for example, has
been shown to be significantly less memorable, engaging, and use-
ful than those instructional methods that combine both auditory and
visual information simultaneously. I will discuss this in more detail in
Chapter 6, but this should very quickly illustrate to you that many of
the things we are doing need to change for the well-being of the next
generation of game players.