There is no "right" way to consent a patient, but there is a set essential elements that are contained in a "correct" or ethical consent.  SC∆RE is a mnemonic device for the 5 essential elements of an ethical consent.  The device is intended to help you remember those elements during your conversation with a patient that you intend to enroll in a research project.  SC∆RE also happens to be a very useful order in which to discuss those elements of the study with the patient.  You may consent the patient in any order you wish (5! = 120 possible combinations) but you will find that most consents that do not begin with the study question do not go well.