Knowing that pedagogy for each age group is different, I will say right off the bat I am talking about working adults.
I am noticing more and more, that despite people's phobias about math, they are often quite good about dealing with those special cases specific to their subject.
Today I will talk about units and measurement. The typical discussion of measurement uses Area and Length and feet and inches. These are considered "universal".
In practice, these units of measurement are not the most useful. Here is an example from a page on website, related to a course on Web design I am reading:
Example: Mozilla CSS docs on length (Relative and Absolute Units)
These are not your typical units of measurement. We have the inch and centimeter but also
- the pixel which is measure relative to the device you are using and
- the em which is relative to the font being typed.
- There are also percentage units which are measured relative to the width and height of your window, or even whether you are holding your phone straight or sideways.
These units of measure are dynamic since these lengths or proportions are based on information that is changing with time.
A web designer's job is to take an aesthetic or conceptual description of a web site and turn it into a precise and more quantitative version for the computer to understand. Moreover, the same set of proportions have to work under a variety of circumstances of which they do not have any control.
How can we discuss the geometry of websites when there is so much variation?
It seems are textbooks are do not reach far enough in addressing real-life practical measurement. Why are web designers able to understand delicate geometric concepts in the context of the theory of Cascading Style Sheets but not within the traditional mathematics framework?