[GDC7]

> It took less than a minute to explain that this just means a sequence of sums, maybe ten seconds. I just wrote down something like: "(a0 * b0) + (a1 * b1) + ... + (an * bn)" and said: "This is what it means. Summation". Done.

I think the real world feedback is quite different, given that math can be explained textually with words , why should we not do it?

The burden of the proof is always on the institution trying to do something. In this case the US government trying to make the US population better at math.

The population is quite okay with the present day situation, it's the government's job to make stuff happen and change things around to obtain the desired result, that is an improvement compared to what we have today.

Math proficiency is in line with new notation foreign languages proficiency from your examples (Chinese, Japanese, Austrian and German to a certain extent), that's because as you said both math and those languages have a different notation.

Given that (unlike foreing languages) math can be explained WITHOUT having to teach a new notation, then why don't we do it?

New notations are necessary for Chinese, but not for math, so why don't we remove this barrier to entry?

New notation is part of the human civilization but it has to be acquired early on to become like a second skin, which is what Latin letters are for us.

One has to be realistic . Mathematical notation will always take the backseat vis-a-vis literal notation. Kids just don't learn (and aren't taught) mathematical notation the same way they learn (and are taught) latin letters.

Instead of fighting against windmills we should take that as a given and try to influence what can be influenced.

As I said the institution trying to make a change in end results, must consider changes in the process...otherwise nothing happens.

[robomartin]

I think the notation is very much needed because it quickly becomes a tool for thought and communication. This is very much the case for every spoken language and other areas, such as music. Your point, which is quite correct, is that the math might not be explained well enough and internalized to the extent where the notation becomes a language for students beyond the simplest levels of mathematics.

A kid can learn the notation for whole, 1/4, 1/8, etc. musical notes and their positions on the staff very easily. An immediate relationship is created to the key on the piano or the fret on the guitar. I have been to math classes where the professor simply vomits formulas on the blackboard for one hour and you are left to figure out what they hell happened. That is a problem. Not the notation. The way math is taught.

[GDC7]

> A kid can learn the notation for whole, 1/4, 1/8, etc. musical notes and their positions on the staff very easily. An immediate relationship is created to the key on the piano or the fret on the guitar

I don't know about that. How many people can read music?

But also music, much like Chinese and Japanese is at a comparative disadvantage compared to math because there are no other tools to explain how high or low a note is.

You can use words to explain math, just like you did with your son.

Internalization is key, if you miss the window as a kid then it's gonna be an uphill battle and life being complicated as it is would mean people giving up on it.

And real world feedback is telling us that such window will be missed, that's why I had thought about math being always explained using the familiar English language which is almost always never missed as a kid.

[Jtsummers]

> Given that (unlike foreing languages) math can be explained WITHOUT having to teach a new notation, then why don't we do it?

Can you explain, say, orbital mechanics, without math notation? In a way where someone can determine where a satellite will be at a particular time given its position and velocity at a prior time taking into account disturbances to the ideal orbit caused by the Moon and Sun (we'll stick with just those 2 and pretend the Earth itself is a perfect sphere).

I don't mean explain in a pop-sci sense. That's actually feasible with very little math (though you will probably want some diagrams), I mean explain in a way that the audience can then apply this math-but-not-in-math-notation to solve real world problems.

[GDC7]

Again, you are assuming that math is only done at the frontier.

I don't care about the frontier, I care about improving standards of living and quality of life, and that you can do by moving the needle in a concrete manner for HS and college math proficiency.

Not to mention that the satellite operations you mention will benefit a lot thanks to a higher standards of living/quality of life which are synthetized in the GDP metric.

One can only imagine the GDP growth that would happen if math proficiency levels were to suddenly become on par with coastal China.

At that point the satellite operations you'd speak of would become much smoother without even needing to move the math frontier forward.

You'd see collapsing costs everywhere ranging from personnel, raw materials, building operations, security and so forth.