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Successful completion of many kinds of homework, such as essay writing and problem solving, often proceeds in two parts.
Part One: Generate various overall plans or ideas, discarding some as soon as they are generated, and discarding others after making some initial efforts to implement or apply them. If all the ideas have been discarded, then you aren't ready to move beyond part one.
Part Two: Implement a plan or apply an idea, possibly modifying the original plan or idea.
With ebooks, there's space to provide lots of examples of the "Part One" process described above. In the past, for every page approved for inclusion in the final draft of a textbook, hundreds of thousands of copies of the textbook contained that page, teachers would assign that page as required reading, and that page would add to the thickness and weight of the textbook. One additional page wouldn't have been a big problem, but eventually one would reach the straw that breaks the camel's back. Knowing this, writers and publishers didn't wait for the unacceptable scenario to arise, but took steps to prevent it from arising. Examples or case studies of "Part One" thinking were usually not included in textbooks, giving students no way to access that kind of material.
Everything seemed simple that way. There was no messy, trial-and-error process. However, standard textbooks omitted a big part of the historical process through which ideas were actually conceived, and also omitted a big part of the actual thought processes that successful students use to get their homework done. Just as apprenticeship can be an effective approach to learning, seeing how successful students get their homework done can be an effective approach to learning.
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