“…For example, instructions on how to replace spark plugs in a car engine might include information about the role they play in the engine (ignite the fuel). This type of information in instructions has been called system information (Karreman & Steehouder, 2004), functional information (Smith & Goodman, 1984), figurative knowledge (Duff & Barnard, 1990), supportive information (Kester, Kirschner, Van Merrienboer, & Baumer, 2001), and principles (Catrambone, 1995b). Sometimes this type of information is referred to as “how it works” information in contrast with “how to do it” information that is indicative of procedural instructions (Bibby & Payne, 1993; Duff & Barnard, 1990).…”