Mathematics is a subject, it requires not only practice but a deep understanding and fun in learning new things. Math is always can learn in a easy and interesting with PRAGMATIC way. Students must understand the basics throughly then they can go to the application part. Calculus is a part of mathematics which is useful to every domain of Engineering, but the calculus part is learned in a early age like 6th and 7th classes onwards, the reason is for every conclusion in mathematics there is a question behind it. If the students understands the reason behind the theory, it is absolutely easy to get the command on subject. The subject is innovative and creative one. For example "area" is a concept which is completely related to definite integration. Airthemetic is one of the best area to get command through. Unstructured figure area can be calculate with exact measure by using definite integration.