Babylonian Word Problems
To me, practicality in mathematics means that the math learned in useful in day to day life. Most of the time, it is something that is so frequently used or thought about that we almost forget that it is math. Examples of this is calculating which box of chocolates is cheaper at the store, or planning how long you can sleep in the next day without being late for class. When I think about abstraction, I imagine math that can't be easily modeled in my head. For example, this would be something like the n-th dimension when thinking about linear algebra. I think that things that were once an abstract concept to someone can become concrete as they become more familiar with the topic and develop a deeper understanding. I would argue that pi is pretty abstract until you understand that it is the ratio between the circumference and the diameter. The same can be said for algebra, as the steps would seem meaningless if you didn't understand why it worked. The difference betwe...