The History of Babylonian Word Problems
Personally, I interpret practicality as the ability to put an idea into concise language which can be agreed and practiced by everyone into real-life situation. In contrast, my interpretation of abstraction is some ideas or concept that brings up inquiry, discussions, and debates where it cannot be put into a simple form of representation yet that everyone can agree on or apply it to real-life situation. Hence, practicality and abstraction sound like they are two contrasting term. Although, they do not seem to be as contrasting when applied to mathematical context. The idea of applied mathematics is known to be the "practical" one whereas pure mathematics is known to be the "abstract" one. However, I believe that the basis of every mathematical concept holds abstract nature as mathematics is not something that involves discoveries of physical object. It is rather a discovery of a method or a way to represent an abstract idea. Hence, applied mathematics and pure mat...