I found math class stultifying and boring until the focus switched from learning algorithms for computation to doing proofs of relations and concepts. Also I began to discover the actual applications for advanced math, instead of learning it for its own sake. I wish in hindsight that instead of taking endless years of calculus there was a high school version of real analysis, and exercise problems rooted in real-life…
Why Do Americans Stink at Math?
181–190 of 257 posts
Re: Why Do Americans Stink at Math?
#182Earlier quoted context omitted.
I once heard an anecdote that might describe some of what's happening. In the trenches of WWI, when it was time to fight, soldiers would have to climb up a ladder onto a battlefield. The problem was that German snipers could see the tops of the ladders. The Germans would keep their rifles fixed on where they knew the enemy would emerge and simply shoot them down once they saw helmets appear. The European Allied soldi…
> In the trenches of WWI, when it was time to fight, soldiers would have to climb up a ladder onto a battlefield. The problem was that German snipers could see the tops of the ladders. The Germans would keep their rifles fixed on where they knew the enemy would emerge and simply shoot them down once they saw helmets appear. > The European Allied soldiers were so disciplined that they just kept climbing up the ladders…
Re: Why Do Americans Stink at Math?
#183I teach math. I am impressed that when you read these comments, very few of them show evidence of having read the article. The article is about experience with actual students, with ones who have a real knack for the subject and would learn it despite what any teacher did, and with ones who waver. There proves to be a better way, which the article describes in various ways, including as "sense-making." One of the pro…
We need a culture of listening and less of speaking.
Re: Why Do Americans Stink at Math?
#184I teach math. I am impressed that when you read these comments, very few of them show evidence of having read the article. The article is about experience with actual students, with ones who have a real knack for the subject and would learn it despite what any teacher did, and with ones who waver. There proves to be a better way, which the article describes in various ways, including as "sense-making." One of the pro…
- It wasn’t the first time that Americans had dreamed up a better way to teach math and then failed to implement it. …The trouble always starts when teachers are told to put innovative ideas into practice without much guidance on how to do it. In the hands of unprepared teachers, the reforms turn to nonsense, perplexing students more than helping them.
- American institutions charged with training teachers in new approaches to math have proved largely unable to do it. At most education schools, the professors with the research budgets and deanships have little interest in the science of teaching.
- Without the right training, most teachers do not understand math well enough to teach it the way Lampert does. “Remember,” Lampert says, “American teachers are only a subset of Americans.” As graduates of American schools, they are no more likely to display numeracy than the rest of us.
- Left to their own devices, teachers are once again trying to incorporate new ideas into old scripts, often botching them in the process.
- In Japan, teachers had always depended on jugyokenkyu, which translates literally as “lesson study,” a set of practices that Japanese teachers use to hone their craft. A teacher first plans lessons, then teaches in front of an audience of students and other teachers along with at least one university observer. Then the observers talk with the teacher about what has just taken place. Each public lesson poses a hypothesis, a new idea about how to help children learn. And each discussion offers a chance to determine whether it worked. Without jugyokenkyu, it was no wonder the American teachers’ work fell short of the model set by their best thinkers.
And the most important two paragraphs:
The other shift Americans will have to make extends beyond just math. Across all school subjects, teachers receive a pale imitation of the preparation, support and tools they need. And across all subjects, the neglect shows in students’ work. In addition to misunderstanding math, American students also, on average, write weakly, read poorly, think unscientifically and grasp history only superficially. Examining nearly 3,000 teachers in six school districts, the Bill & Melinda Gates Foundation recently found that nearly two-thirds scored less than “proficient” in the areas of “intellectual challenge” and “classroom discourse.” Odds-defying individual teachers can be found in every state, but the overall picture is of a profession struggling to make the best of an impossible hand.
Most policies aimed at improving teaching conceive of the job not as a craft that needs to be taught but as a natural-born talent that teachers either decide to muster or don’t possess. Instead of acknowledging that changes like the new math are something teachers must learn over time, we mandate them as “standards” that teachers are expected to simply “adopt.” We shouldn’t be surprised, then, that their students don’t improve.
But this isn't news (even if the article is from 2014). I've linked to this report from 2007 many times before and I'll do so again:
http://mckinseyonsociety.com/how-the-worlds-best-performing-...
To find out why some schools succeed where others do not, McKinsey studied 25 of the world’s school systems, including 10 of the top performers. The experience of these top school systems suggest that three things matter most:
Getting the right people to become teachers; Developing them into effective instructors; and Ensuring the system is available to deliver the best possible instruction for every child.
In the US, we fall down on all three of these points.
Re: Why Do Americans Stink at Math?
#185> Without the right training, most teachers do not understand math well enough to teach it the way Lampert does. My high school math teacher majored in math and then got a certificate in teaching. She wasn't a teacher who was told to teach math among other classes. She knew all the advanced stuff (beyond what a high school curriculum required), she was excited about it, she could explain things in various ways, give…
I used to think so too, but I don't think that is exactly the case. School districts usually span many neighborhoods, rich and poor. Within school districts, there are school zones (school boundaries), or mappings of residential addresses to assigned schools. While it's true that richer neighborhoods tend to have better schools, the property tax money is collected centrally at school district level, and then distributed across schools, both rich and poor. I haven't seen evidence that districts distribute more money to schools in richer neighborhoods.
If anyone is more knowledgeable on this, I would love to learn more.
Re: Why Do Americans Stink at Math?
#186Re: Why Do Americans Stink at Math?
#187Earlier quoted context omitted.
> It's a mixed bad in K-12 Your typo is very accurate :-) I would say that our problem in K-12 is a self-perpetuating one. The teachers were taught math badly and so never really learned it (and learned to hate it into the bargain). So then they teach it badly. I'm not sure there's any solution except for tuning the students in to Khan Academy and suchlike programs.
>The teachers were taught math badly I'm a college math professor, and I've talked to people who've taught the required "math for elementary ed majors" class. From everything I've heard, it's bleakly depressing. The students (i.e., the future teachers) show little aptitude, curiosity, or work ethic. They just want to be shown algorithms that will always lead them to the correct answer. I haven't taught such a course…
Your elementary teacher may not be a math major because they are expected to teach all subjects. There is also probably some bias against deep content knowledge because "it's elementary school after all".
Secondary Education degrees are subject specific, so secondary education math students would, in fact, be mathematics majors.
Re: Why Do Americans Stink at Math?
#188Earlier quoted context omitted.
> In the trenches of WWI, when it was time to fight, soldiers would have to climb up a ladder onto a battlefield. The problem was that German snipers could see the tops of the ladders. The Germans would keep their rifles fixed on where they knew the enemy would emerge and simply shoot them down once they saw helmets appear. > The European Allied soldiers were so disciplined that they just kept climbing up the ladders…
It's a stupid anecdote to point out the fact that differences in cultural attitudes can explain and somewhat justify test scores. I'm not even American, and I never claimed that the anecdote is true.
It would if it were true.
> I'm not even American
That's immaterial.
> and I never claimed that the anecdote is true.
Well, you didn't claim that it wasn't true either, but the whole thing hinges on whether or not the anecdote is true so if you bring it up I'm going to assume that you at least believe it to be true and that the conclusion is supported by the anecdote.
If we're all just going to make stuff up to prove some point then it becomes very hard to reach conclusions.
Re: Why Do Americans Stink at Math?
#189Earlier quoted context omitted.
US society/culture in general is the main cause of this problem as most people here do not value math. Math requires deep, creative and original thinking and thinking is rather difficult to perform act. It seems that the US culture derides analytical thinking in general, with many popular public figures flaunting their "inability to do math" as some sort of great achievement and sending out a loud and clear messages,…
>> It seems that the US culture derides analytical thinking in general, with many popular public figures flaunting their "inability to do math" as some sort of great achievement and sending out a loud and clear messages, like, "don't analyze just enjoy your life and avoid math as math means analysis" I am generally not a fan of speaking in terms of "privilege" and "identity", but this is precisely an example of "deve…
In the 1980's, consumer level computers were being marketed as "boy toys" and american culture internalized the idea.
Re: Why Do Americans Stink at Math?
#190The key to math education is practice. Even drilling, maybe. Other fields deal with concepts more or less mapped to the real world. Physics is about real world, more or less (right until you get to quants, then the level of abstraction rises dramatically). Same goes for biology, and even computer science in general. There, you can rely on words, which usually convey meaning. In math, you can't rely on words. You'll n…
Reminds me of this interview by Knuth [1], where he says, because of his initial insecurity that he was not good enough, he started by out doing twice as many math exercises as his classmates. He at first put in a lot of effort, but eventually he was just coasting through ahead of his classmates. He attributes it to the drilling he put in initially. [1] http://www.webofstories.com/play/donald.knuth/9
Now, doing many exercises is a different thing! one that I encourage! In most textbooks, exercises range in difficulty and approach. I write math problem sets for students, and I build them to go from mechanical to sophisticated. The last few problems involve proofs, applications, links between different areas of mathematics and statistics.
Students in my class who just do probability drills will not be able to do the last problem on the problem set. They don't have any practice at problem-solving in this context. Students who do all the exercises, and more, can do amazing things.