Language teaching is less about the school and more about the process of learning English. The modern approach to all language learning and teaching is the scientific one and is based on sound linguistic principles.Principle of Graded Patterns is one of the principles of materials preparation for language learning that emphasizes that materials need to be graded appropriately.€œTo teach a language is to impart a new system of complex habits, and habits are acquired slowly.€ So, language patterns should be taught gradually, in cumulative graded steps.This means the teacher should go on adding each new element or pattern to previous ones. New patterns of language should be introduced and practiced with vocabulary that students already know.Here, in the above-mentioned situation, the teacher is introducing students first the questions with Do form before teaching the questions with interrogative words because questions with Do form will help students to understand questions with interrogative words easily.Hence, we can conclude that the above-mentioned way of teaching is associated with the Principle of Graded Patterns.