Imagine that your only contact with "English" as a
subject was through classes in school. Suppose that those
classes, from elementary school right through to high school,
amounted to nothing more than reading dictionaries, getting
drilled in spelling and formal grammatical construction, and
memorizing vast vocabulary lists -- you never read a
novel, nor a poem; never had contact with anything beyond the
pedantic complexity of English spelling and formal grammar, and
precise definitions for an endless array of words. You would
probably hate the subject.
You might come to wonder what the point of learning English was.
In response perhaps the teachers and education system might
decide that, to help make English relevant to students, they need
to introduce more "Applied English". This means
teaching English students with examples from "real
life" (for varying degrees of "real") where
English skills are important, like how to read a contract and
locate the superfluous comma. Maybe (in an effort by the teachers
to be "trendy") you'll get lessons on formal diary
composition so you can better update your MySpace page. All of
that, of course, will be taught using a formulaic cookbook
approach based on templates, with no effort to consider
underlying principles or the larger picture. Locating the
superfluous comma will be a matter of systematically identifying
subjects, objects, and verbs and grouping them into clauses until
the extra comma has been caught. Your diary will be constructed
from a formal template that leaves a few blanks for you to fill
in. Perhaps you might also get a few tasks that are just the same
old drills, just with a few mentions of "real world"
things to make them "Applied": "Here is an
advertisement for carpets. How many adjectives does it
contain?".
In such a world it wouldn't be hard to imagine lots of people
developing "English anxiety", and most people having a
general underlying dislike for the subject. Many people would
simply avoid reading books because of the bad associations with
English class in school. With so few people taking a real
interest in the subject, teachers who were truly passionate about
English would become few and far between. The result, naturally,
would be teachers who had little real interest in the subject
simply following the drilling procedures outlined in the
textbooks they were provided; the cycle would repeat again, with
students even worse off this time.
And yet this is very much how mathematics tends to be taught in
our schools today. There is a great focus on the minutiae of the
subject, and almost no effort to help students grasp the bigger
picture of why the subject might be interesting, and what it can
say about us, and about the world. Mathematics has become
hopelessly detail oriented. There is more to mathematics than
mindlessly learning formulas and recipes for solving problems.
And just like our imaginary example, the response to students
lack of interest in mathematics has only served to make the
problem worse. The "applications" and examples of using
the mathematics in the "real world" are hopelessly
contrived at best, and completely artificial at worst, and still
keep a laser like focus on formulas and memorizing methods
without ever understanding why they work.
Of course the opposite situation, with no focus on details, can
be just as bad. Indeed, that is where English instruction finds
itself today, with students never learning the spelling, formal
grammar, and vocabulary needed to decently express the grand big
picture ideas they are encouraged to explore. What is needed is a
middle ground. Certainly being fluent in the basic skills of
mathematics is necessary, just as having a solid grounding in
spelling and grammar is necessary. What is lacking in mathematics
instruction is any discussion of what mathematics is, and why
mathematics works as well as it does.
The discovery and development of mathematics is one of the great
achievements of mankind -- it provides the foundation upon which
almost of all modern science and technology rests. This is
because mathematics, as the art of
abstraction, provides us the with ability to make simple
statements that have incredibly broad application. For example,
the reason that numbers and arithmetic are so unreasonably
effective is that they describe a single simple property that
every possible collection possesses, and a set of rules that are
unchanged regardless of the specific nature of the collections
involved. No matter what collection you consider, abstract or
concrete, it has a number that describes its size; no matter what
type of objects your collections are made up of, the results of
arithmetic operations will always describe the resulting
collection accurately. Thus the simple statement that 2 + 3 = 5
is a statement that describes the behaviour of every
possible collection of 2 objects, and every
possible collection of 3 objects. Algebra can be viewed the
same way, except that instead of abstracting over collections we
are abstracting over numbers: elementary algebra is the
combination of objects that represent any possible number (as
numbers represent any possible collection with the given
quantity), and the set of arithmetic rules for which all numbers
behave identically. Numbers let us speak about all possible
collections, and algebra lets us speak about all possible
numbers. Each layer of abstraction allows us to use an ever
broader brush with which to paint our vision of the world.
If you climb up those layers of abstraction you can use that
broad brush to paint beautiful pictures -- the vast scope of the
language that mathematics gives you allows simple statements to
draw together and connect the unruly diversity of the world. A
good mathematical
theorem can be like a succinct poem; but only if the reader
has the context to see the rich connections that the theorem lays
bare. Without the opportunity to step back and see the forest for
the trees, to see the broad landscape that the abstract nature of
mathematics allows us to address, it is rare for people to see
the elegance of mathematical statements. By failing to address
how mathematics works, how it speaks broadly about the world, and
what it means, we hobble children's ability to appreciate
mathematics -- how can they appreciate something when they never
learn what it is? The formulas and manipulations children learn,
while a necessary part of mathematics, are ultimately just the
mechanics of the subject; equally important is why those
mechanics are valuable, not just in terms of what they can do,
but in terms of why they can do so much.
So why is it that this broader view is so rarely taught? There
are, of course, many reasons, and it is not worth trying to
discuss them all here. Instead I will point to one reason, for
which clear remedies to exist, and immediate action could be
taken. That reason is, simply, that far too many people who teach
mathematics are unaware of the this broader view themselves. It
is unfortunately the case that it is only at the upper levels of
education, such as university, that any broader conception about
mathematics becomes apparent. Since it is rare for people going
into elementary school teaching to take any university level
mathematics, the vast majority of elementary teachers -- the math
teachers for all our children in their early years -- have little
real appreciation of mathematics. They teach the specific trees
outlined in textbooks, with no real idea of forest. A simple but
effective measure that could be taken is to provide stronger
incentives and encouragement for prospective elementary school
teachers to take extra math; whether it takes the form of
courses, or math clubs, doesn't matter, the aim is to get
teachers more involved and better exposed to mathematics in
general so that they can become familiar with the richer world
beyond the specific formulas and algorithms. This exact approach
was
tried in Finland as part of their LUMA project starting in
1992. As a result the number of teachers graduating with higher
level had increased dramatically by 1999. And the results are
also clear: Finland finished first,
showing continued improvement in mathematics and science, in
the 2003 PISA survey of the reading, math, and science skills of
15-year-olds in OECD countries (Finland finished second, just
behind Hong Kong, in the mathematics section). Finland has
continued to do extremely well in other more recent (though less
major) studies.
Whether you view mathematics as an important subject or not, it
is hard to deny that, currently, it is being taught poorly in
many countries around the world. With such scope for improvement,
and clear examples such as Finland showing the way, isn't it
time that we took at least some of the obvious steps toward
improving the quality of mathematics education?
Some of the best material comes from outside the schools. There was a slender Time-Life book about math from the 60s (blue cover with a wireframe helix) which covered probability, basic calculus, analytic geometry and other topics and clearly showed the fun behind it all.
Amen!
The state of math education is deplorable in the US. And this post is right on the money.
But, I'd add three other suggestions:
Distinguish math from rote arithmetic. Arithmetic as it is taught is the antithesis of math, depending on rote learning and fixed algorithms. It drives out the people best suited to creative thought and symbolic manipulation.
Identify the application the student needs and teach synchronously. I learned more calculus from my high school AP physics teacher than my math teachers.
Teach math in conjunction with programming. Nothing better complements programming than great lashings of discrete math, graph theory, and symbolic manipulation. In the same manner continuous math can complement simulation, and Game Physics.
Mathematics has a history, and much of its history is tied up with solving problems in the real world. From estimating the size of the Earth to the air speed of an unladen swallow, math evolved in great part as a tool to solve problems that are inherently interesting.
I had no real use for mathematics myself until I took AP Physics and AP Calculus in high school. That was a fairly exhilarating experience for me. I was experiencing both physics and math in much the same way Newton developed them. Math class had utility for me. It was no longer a matter of shoveling around the equations. I compared my experience with that of the students around me who were taking only Calculus and either no physics or physics without calculus. I could see that for them, calculus was useless and boring and had no relation to anything else in their lives.
Schools today don't do this enough. These "subjects" we teach kids didn't evolve in the same splendid isolation we recreate in the classroom. Most modern English readers have a great deal of difficulty with Shakespeare because they lack the general history education to understand his work. I would have given my eyeteeth had my English and History teachers worked in concert so that what I learned in history was immediately relevant to what I needed to understand in English.
The same can be said about most topics. Why approach biology without a relevant short course in probability, statistics and discrete mathematics? It is so important it should be an integral part of the course work. How about a little chemistry? Without including at least some of the basics biology courses are just exercises in memorization... and quite often they serve as fodder for lifelong lessons in forgetting by the end of summer because they have no relevance to everyday life or any other "subject" of study. Quick... what is the primary source of muscular energy? Don't look it up! Can you remember? Have you needed to remember since the day after your last bio class?
Its how these bits of knowledge relate to each other that makes them memorable, and eventually useful to us. When we memorize in isolation we gain nothing in the end. Further even if students remember their lessons, we may be teaching them the wrong things.
The equations we learn in physics shouldn't be taken on faith from a source high up in science land. Assume a constant acceleration and you can integrate to arrive at the formulas for motion most students are spoon fed. The important point being that the student can independently verify the logic of what they are learning. Students must participate in learning to acquire real connectedness and meaning.
As an example, a student who understands this point will also understand that you can find out the acceleration for an object by observing its position very precisely over time. This is something impossible to understand for most students who merely get the spoon fed version of these equations.
The answer to my little quiz: Adenosine TriPhosphate, aka ATP. Being a victim of the US education system I don't really see how that is useful to me. I guess it means that I understand a bit of the chemistry that makes exercise effective in burning up all that fried food calories I like to shovel in... speaking of which, gotta go.
If you've ever tried speaking with a Japanese person, it is not uncommon to find he or she speaks very little English. Surprising though, is that English lessons are compulsory during Japanese schooling....... and it is taught in Japan almost exactly as per the article introduction........ Speaking from the perspective of a foreigner who lives in Tokyo, I will say that the result of this approach is that "foreigner anxiety" (fueled by "English-anxiety") is very typical - even in large metro areas where a relatively high number of native English speakers abound. At least at some level this seems to have a very bad isolationist effect for Japan... including the confidence of Japanese (very evident when meeting Japanese traveling outside Japan for the first time) and in the overall shape of the cornered Japanese economy..... people learn when learning is fun......
I hadn't actually thought about this, but you make an interesting point. Certainly, in my experience while travelling in Japan, it is true that Japanese are often very reluctant to speak English (and when they do their English often turns out to be far better than their reticence had implied). Thank you for a very astute observation.
The scary idea which occurs to me, is that with so many subjects being taught so badly, what if it is deliberate? I dont mean to suggest a vast conspiracy of teachers, but what if those who teach the teachers how to teach have another agenda..... or maybe I am just a paranoid loon.....
With language, my understanding is that we learn best by immersion. We speak our native language in school and out, we read, we listen, we communicate in it throughout our waking hours. If we think of math as a language - and it is at least a toolset for communication - then the problem becomes pretty clear:
Does... or rather, can anyone get this sort of immersion in math before college?
There's only so many waking hours, and it's really important that folks gain fluency with their home language or the language of the culture around them. I don't see how it's reasonable for math to be prioritized any higher than these, even if we knew how to immerse a student in math at that kind of depth.
So I don't think the problem that the (excellent) article describes is purposeful... I think it's just inherent.
You have a good point here - but if we understand "mathematics" as the underlying structure of a language whose vocabulary is science in general, then my answer is YES. We can get that kind of immersion before college - maybe at an elementary level that has to be built on, but science relates directly to things that everyone, even children, see every day. Certainly by the time we reach high school, it makes sense to think about questions like: how does a car work? A computer? A cell phone? Those animals/plants: why do they have this or that quality? Why is some food good for me and some not? What's with this "global warming" anyway?
All of which involve different areas of science, each of which proves to pull in mathematics - knowing even the basics about biology, chemistry, physics, computer science, evolution, genetics, etc. starts to reveal common patterns, which are mathematical in nature. And children are constantly immersed in a world whose basic language is science - namely, the physical world. The cultural world certainly exists and is important, but should it really be prioritized ahead of physical reality?
While I agree that more can be done - and I do a lot of what you describe with my own kids - it's limited to exposure, not immersion.
We call math a language a bit glibly, I think. Math certainly shares many features of language, but its conceptual space is not well aligned with a human's social needs. In order to really immerse kids in math, to treat it as truly a native language, there would have to exist mathematical ways for parents to tell their children they love them, and for children to sing made-up songs and tell their parents they need to go wee. Math-the-language would need metaphors and emotion to be useful as a real language among people. A child needs a foundation in a mother tongue in order to learn to live in society, and math is too precise and exacting to fill such a messy and imprecise role.
"And children are constantly immersed in a world whose basic language is science - namely, the physical world."
Science is just one way to undestand the physical world. Myth serves peoples' need for understanding quite as well, although it admittedly makes for crappy engineers. :-)
"The cultural world certainly exists and is important, but should it really be prioritized ahead of physical reality?"
Absolutely. Physical reality has a way of taking care of itself. The cultural world has less of that advantage, and is responsible for important stuff like moral judgement. Anyway, you're talking about prioritizing an abstraction of physical reality (math) not physical reality itself.
Basic instruction in logic (formal and informal) would go a long way towards revealing the math behind everyday existance. As poor as math inctruction is, reasoning and logic and debate aren't taught at all.
It might amaaze people how many political shenannigans wouldn't fly if the general population really understood that the "answers " in the press conference don't actually address the question or that the "conclusions" presented don't actually follow from the "argument" at all.
Armed with that, mathematics (as opposed to arithmetic) would make a lot more sense.
Of course, a good start would be for elementary schools to quit trying to pass arithmetic off as mathematics in the first place.
We can't expect the students to know there's a difference if their teachers don't.
As far as memorizing times tables goes, that will happen by itself if they work practical problems and instead of being drudgery, the students won't even realize they're doing it until they look back and remember how long it USED to take.
As a postscript, I went all the way through calculus in high school and not ONCE did a teacher point out that all of the conic sections are actually described by a single "master equasion" from which the more specific equasions are derived based on which parts degenerate.
When public schooling was implemented in the U.S. it was explicitly designed to turn out factory workers. They needed to be able to read, follow instructions, do basic math, switch tasks at the ring of a bell and handle rote learning. Asking about how and why or questioning "the answers from above" were specifically unwanted.
These days, I don't *THINK* that is done deliberatly. It's just that "it's the way it's always been done" and the original objective has been forgotten. Everyone just assUmes the purpose was to provide the best possible education.
The article presented some astute observations on not only the way we teach mathematics but a great deal of other subjects as well. We seem to be stuck in the details and have failed to communicate the fundamentals.
What is lacking in mathematics instruction is any discussion of what mathematics is, and why mathematics works as
well as it does.
As a product of the the spoon fed, rote and drill mathematics I lack a great deal of appreciation for mathematics. I know there is something that I am missing, but heck if I really know what it is. This article brought a glimmer of the world that I am missing. Putting math in context and formulas into a practical framework can bring the material to life; I think I learned a great deal more when I took physics with calculus (took the class quite by accident), rather than the physics without calculus. In high school, physics was easier because we had a teacher who taught us how to derive equations rather than the other class which had to memorize each different derivative of a general equation.
But, it could have been better. One of the other commentators also mentioned this. It would be far better to have students derive the equations for motion by actual observation. Although I can use the equations to get some useful answers, I have no true understanding of the actual concepts - I am merely plugging and playing the equations. Reading about one of the masters trying to derive the mass of the earth, I was struck by the thought “How the heck did he figure that out ?”. Yet, I had all the same tools he did, but the conceptual leap was just not there, likely because I did not have that deep/basic? an understanding of the tools that I did have. Of course to actually teach people to think and question would take time and effort. It is far easier to throw out facts rather than explain concepts, but one would not have to cram as much minutiae because general principles and fundamentals would be in place to actually derive answers.
I think we are education generations of button pushers with only a few people understanding why those particular buttons are pushed.
On the math-english analogy: it's very humorous how when someone says "oh, I was never any good at math", people will just accept it and not think much of it. But if someone says "oh, I was never any good at reading" they'll be looked at as some sort of dumb-ass.
This is a very interesting article - I went to an "alternative" primary school, where we were taught to think creatively, taught to think for ourselves and taught how to work things out from first principles. There was no rote learning of times tables or anything like that.
In school, I was always pretty good at maths - it's something that I understood logically, and really found it invaluable to my understanding to be told the why not just the how of it all worked.
When I changed to a different (state-run) primary school in grade 6 - the focus was on rote learning of times tables - every morning there would be a sheet of 100 simple x*y=? basic arithmetic questions - I was consistently the slowest in the class, having never had to do anything like this before, yet consistently excelled in general grades in maths...
As a teacher of mathematics, I agree completely. Encouraging elementary teachers to become more fluent in math is a good first step. One stumbling block to this is that many who go into elementary education are themselves math phobic to a greater or lesser degree. They love literature and reading (also my first love) and are not even aware that they lack a conceptual understanding of math, they just "don't like if very much."
There is also a great deal of pressure to teach in a rote and formulaic fashion. As a middle school algebra teacher I have to sneak in conceptual lessons, as I am not given the time to do them...it takes away from all the standardized test taking that is so highly valued by those in charge.
While I love teaching middle school algebra, I question whether it should be an eighth grade standard. I do not believe the State of California is correct that all eighth graders are ready for it. To use just one example, many do not have the multiplcation tables memorized to the point of automaticity, but even more troubling is the fact that memorized or not, many cannot explain what multiplication is. How can they use it? How is it valuable to them? I have gotten into arguments about the importance of understanding multiplication conceptually with a so called expert brought in to my school site to train me (translation: show me how to get better standardized test results.) My principal took the trainer's side and was upset with me for questioning his "expertise."
While I appreciate the need for accountability, this emphasis on test scores in combination with the sheer quantity of standards at each grade level makes teaching conceptually just about impossible. The countries that do best in math and science emphasize quality over quantity (China and Japan have far fewer standards per grade) and have classroom strategies are coneptual rather than procedural this is born out be the last TIMMS study.).
Ultimately, until we stop expecting each grade level to master between 20 and 30 standards for each subject, teachers will continue to teach the "mile wide, inch deep" curriculum and all the generations coming through the public school system will suffer.
When I came across this, I thought it was going to be IN FAVOR of teaching english the way we teach math. English class is still baffling to me, and I am now a sophomore in college. Math class is perfect. It shouldn't change. I do have Writing Anxiety. Maybe you think it doesn't exist. No one ever talks about it. No one expects a person to have trouble with writing. There are no remedial writing classes at my school, except the one that teaches you how to put sentences together. I know how to put sentences together. I know how to speak. I know how grammar works, and I know how punctuation works. I just can't write papers. People think I'm faking.
If We Taught English the Way We Teach Mathematics...
Imagine that your only contact with "English" as a subject was through classes in school. Suppose that those classes, from elementary school right through to high school, amounted to nothing more than reading dictionaries, getting drilled in spelling and formal grammatical construction, and memorizing vast vocabulary lists -- you never read a novel, nor a poem; never had contact with anything beyond the pedantic complexity of English spelling and formal grammar, and precise definitions for an endless array of words. You would probably hate the subject.
You might come to wonder what the point of learning English was. In response perhaps the teachers and education system might decide that, to help make English relevant to students, they need to introduce more "Applied English". This means teaching English students with examples from "real life" (for varying degrees of "real") where English skills are important, like how to read a contract and locate the superfluous comma. Maybe (in an effort by the teachers to be "trendy") you'll get lessons on formal diary composition so you can better update your MySpace page. All of that, of course, will be taught using a formulaic cookbook approach based on templates, with no effort to consider underlying principles or the larger picture. Locating the superfluous comma will be a matter of systematically identifying subjects, objects, and verbs and grouping them into clauses until the extra comma has been caught. Your diary will be constructed from a formal template that leaves a few blanks for you to fill in. Perhaps you might also get a few tasks that are just the same old drills, just with a few mentions of "real world" things to make them "Applied": "Here is an advertisement for carpets. How many adjectives does it contain?".
In such a world it wouldn't be hard to imagine lots of people developing "English anxiety", and most people having a general underlying dislike for the subject. Many people would simply avoid reading books because of the bad associations with English class in school. With so few people taking a real interest in the subject, teachers who were truly passionate about English would become few and far between. The result, naturally, would be teachers who had little real interest in the subject simply following the drilling procedures outlined in the textbooks they were provided; the cycle would repeat again, with students even worse off this time.
And yet this is very much how mathematics tends to be taught in our schools today. There is a great focus on the minutiae of the subject, and almost no effort to help students grasp the bigger picture of why the subject might be interesting, and what it can say about us, and about the world. Mathematics has become hopelessly detail oriented. There is more to mathematics than mindlessly learning formulas and recipes for solving problems. And just like our imaginary example, the response to students lack of interest in mathematics has only served to make the problem worse. The "applications" and examples of using the mathematics in the "real world" are hopelessly contrived at best, and completely artificial at worst, and still keep a laser like focus on formulas and memorizing methods without ever understanding why they work.
Of course the opposite situation, with no focus on details, can be just as bad. Indeed, that is where English instruction finds itself today, with students never learning the spelling, formal grammar, and vocabulary needed to decently express the grand big picture ideas they are encouraged to explore. What is needed is a middle ground. Certainly being fluent in the basic skills of mathematics is necessary, just as having a solid grounding in spelling and grammar is necessary. What is lacking in mathematics instruction is any discussion of what mathematics is, and why mathematics works as well as it does.
The discovery and development of mathematics is one of the great achievements of mankind -- it provides the foundation upon which almost of all modern science and technology rests. This is because mathematics, as the art of abstraction, provides us the with ability to make simple statements that have incredibly broad application. For example, the reason that numbers and arithmetic are so unreasonably effective is that they describe a single simple property that every possible collection possesses, and a set of rules that are unchanged regardless of the specific nature of the collections involved. No matter what collection you consider, abstract or concrete, it has a number that describes its size; no matter what type of objects your collections are made up of, the results of arithmetic operations will always describe the resulting collection accurately. Thus the simple statement that 2 + 3 = 5 is a statement that describes the behaviour of every possible collection of 2 objects, and every possible collection of 3 objects. Algebra can be viewed the same way, except that instead of abstracting over collections we are abstracting over numbers: elementary algebra is the combination of objects that represent any possible number (as numbers represent any possible collection with the given quantity), and the set of arithmetic rules for which all numbers behave identically. Numbers let us speak about all possible collections, and algebra lets us speak about all possible numbers. Each layer of abstraction allows us to use an ever broader brush with which to paint our vision of the world.
If you climb up those layers of abstraction you can use that broad brush to paint beautiful pictures -- the vast scope of the language that mathematics gives you allows simple statements to draw together and connect the unruly diversity of the world. A good mathematical theorem can be like a succinct poem; but only if the reader has the context to see the rich connections that the theorem lays bare. Without the opportunity to step back and see the forest for the trees, to see the broad landscape that the abstract nature of mathematics allows us to address, it is rare for people to see the elegance of mathematical statements. By failing to address how mathematics works, how it speaks broadly about the world, and what it means, we hobble children's ability to appreciate mathematics -- how can they appreciate something when they never learn what it is? The formulas and manipulations children learn, while a necessary part of mathematics, are ultimately just the mechanics of the subject; equally important is why those mechanics are valuable, not just in terms of what they can do, but in terms of why they can do so much.
So why is it that this broader view is so rarely taught? There are, of course, many reasons, and it is not worth trying to discuss them all here. Instead I will point to one reason, for which clear remedies to exist, and immediate action could be taken. That reason is, simply, that far too many people who teach mathematics are unaware of the this broader view themselves. It is unfortunately the case that it is only at the upper levels of education, such as university, that any broader conception about mathematics becomes apparent. Since it is rare for people going into elementary school teaching to take any university level mathematics, the vast majority of elementary teachers -- the math teachers for all our children in their early years -- have little real appreciation of mathematics. They teach the specific trees outlined in textbooks, with no real idea of forest. A simple but effective measure that could be taken is to provide stronger incentives and encouragement for prospective elementary school teachers to take extra math; whether it takes the form of courses, or math clubs, doesn't matter, the aim is to get teachers more involved and better exposed to mathematics in general so that they can become familiar with the richer world beyond the specific formulas and algorithms. This exact approach was tried in Finland as part of their LUMA project starting in 1992. As a result the number of teachers graduating with higher level had increased dramatically by 1999. And the results are also clear: Finland finished first, showing continued improvement in mathematics and science, in the 2003 PISA survey of the reading, math, and science skills of 15-year-olds in OECD countries (Finland finished second, just behind Hong Kong, in the mathematics section). Finland has continued to do extremely well in other more recent (though less major) studies.
Whether you view mathematics as an important subject or not, it is hard to deny that, currently, it is being taught poorly in many countries around the world. With such scope for improvement, and clear examples such as Finland showing the way, isn't it time that we took at least some of the obvious steps toward improving the quality of mathematics education?