can be addressed using multimedia is that of context for skillstudy. There is a trend these days in engineering curricula towards case-based learning becausethe linear structure of lectures and textbooks often puts the cart before the horse in terms of whywe study various topics. The origins of the linear lecture system lie in addressing the manylevels of student preparedness. In explaining how something works, we need to be sure that allthe supporting concepts are well developed in the student’s mind. However, it may be hard forstudents to see that studying atomic structure will help them to understand macro materialproperties, and hence to understand why steel is a better choice for bridge building thanaluminum, for example