The present invention comprises a method of developing educational products or materials by utilizing multiple-choice questions. Starting with a given set of facts to be presumed in a question, the method may require one to examine each answer choice, and inquire how a set of facts to be presumed could be modified to make that answer choice the "correct" or "best" answer choice. If a given answer choice is already correct, no modification is needed. If a given answer choice is not correct, various modifications may be employed, including changing some of the words or phrases, or other symbols or objects within the set of facts to be presumed.