Printing

In CAT the learners need to print out all their work so they can learn the work. They need to see their theory and see what skills they have learned using different applications. How it is managed financially I do not know but it is essential that their work is printed out.
I heard some one say that they do not need to print in CAT as they are meant to be learning problem solving skills. Well, before they can solve problems they need a foundation of knowledge. That knowledge must be learned – hence the importance of printing the work. All the information cannot be printed in the textbook as much of it is processed learning the application or research skills.