Cause of Plagiarism

I was sitting near a warehouse of my school and found many assignment papers there. Suddenly I think how so easy teachers give the students a task once task in one or two weeks like making paper, essay, paper plan, then give the score, and finally throw away the assignments to the warehouse. This moment happened not only once but it happened in the whole learning-process. If this moment always happens, I think the students will do that by the easiest strategy, namely “Plagiarism”. They will do plagiarism because it’s easy to copy and paste, there is no willingness to do the boring task, and many people are more respectful to the result of the writing text no to the process.