“The ability to question one’s own knowledge state, recognize its strengths and weaknesses, and take steps to remedy errors or fill in missing pieces,” (Mayer, 2005, pg. 322).
“A linguistic or graphic representation of the organization of main ideas in a text,” (Mayer, 2005, pg. 322).
“A graphical or linguistic representation of the organization of hypertext,” (Mayer, 2005, pg. 322).
“A collection of electronic text documents containing links that move users to related documents. The addition of sound or visual resources transforms hypertext into hyper media,” (Mayer, 2005, pg. 322).