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Elaboration theory is one of the cognitivist models for instructional design proposed by Charles Reigeluth and his associates in 1970s. Very well accepted, it was offering suggestions on how to organize different types of instruction.
The key principle is that the content should be organized starting from the simplest and then increasing order of complexity and that learner has to develop a concept in which new ideas will be meaningful and well accepted.
Elaboration theory suggests instruction should be organized in the following eight strategies:
According to TIP Reigeluth (1983) provides the following summary of a theoretical epitome for an introductory course in economics:
1. Organizing content (principles)- the law of supply and demand
a) An increase in price causes an incease in the quantity supplied and a decrease in the quantity demanded.
b) A decrease in price causes a decrease in the quantity supplied and an increase in the quantity demanded.
2. Supporting content - concepts of price, supply, demand, increase, decrease
Practically all principles of economics can be viewed as elaborations of the law of suppy and demand including monopoly, regulation, price fixing, planned economies.