The process of interpreting the world of knowledge to a student's mind is called the method of teaching. It helps a teacher to understand "what to teach", "how to teach", "how to approach it". It includes both strategies and techniques of teaching and involves the choice of what is to be taught. The teacher must be flexible while using teaching methods to encourage the participation of students in the teaching-learning process.​ Key Points What is the area of the circle whose radius is 5 cm? In this question, the students will directly apply the formula of the area of a circle to get the answer i.e., πr2 where π is a constant which has a value of 3.14 and "r" refers to the radius of a circle. Area of circle = πr2 = 3.14 × 5 × 5 = 78.5 cm2​. Also, the answer to this question is one and unique only that can not be replaced by another answer. So, it is a close-ended type of question. Tell me anything mathematical information you know about kites. Here, the students will give different and multiple responses i.e., the shape of the kite is a trapezoid. The diagonals of a kite are perpendicular to each other. Hence, it is an open-ended type of question. Hence, the question "tell me anything mathematical information you know about kites" is an open-ended question.