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Why Americans Can't Do Arithmetic
Amazon.com ^ | April 21, 2010 | Bruce Deitrick Price

Posted on 04/23/2010 12:22:15 PM PDT by BruceDeitrickPrice

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To: edge10
There are three kinds of people: Those who can do math and those who can’t.

Or 10 kinds. Those who understand binary and those who don't.

61 posted on 04/23/2010 4:26:36 PM PDT by Still Thinking (Freedom is NOT a loophole!)
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To: a fool in paradise
There are three kinds of people: Those who can do math and those who can’t.

Eschew obfuscation.

62 posted on 04/23/2010 4:28:55 PM PDT by Still Thinking (Freedom is NOT a loophole!)
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To: ModelBreaker
except modular arithemetic, which I don't recognize

I took that to mean number systems other than base 10.

63 posted on 04/23/2010 4:30:55 PM PDT by Still Thinking (Freedom is NOT a loophole!)
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To: Still Thinking

There are only 10 kinds of people, those who know binary, and those who don’t.


64 posted on 04/23/2010 4:34:31 PM PDT by dfwgator
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To: dfwgator

Refer to my #111101! Or 0x3D, o75, etc


65 posted on 04/23/2010 4:41:21 PM PDT by Still Thinking (Freedom is NOT a loophole!)
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To: Still Thinking

Heh heh, should have known somebody beat me to the punch.


66 posted on 04/23/2010 4:42:22 PM PDT by dfwgator
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To: Still Thinking

“I took that to mean number systems other than base 10.”

Could be. I just don’t recognize the term.


67 posted on 04/23/2010 4:42:54 PM PDT by ModelBreaker
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To: Peanut Gallery

ping


68 posted on 04/23/2010 4:45:52 PM PDT by Professional Engineer (Conservative States of America has a nice ring to it.)
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To: sima_yi

01010100011010000110111101110011011001010010000001110100011010000110000101110100001000000110010001101111011011100010011101110100001000000111010101101110011001000110010101110010011100110111010001100001011011100110010000100000011000100110100101101110011000010111001001111001001000000110000101110010011001010010000001110011011000110111001001100101011101110110010101100100


69 posted on 04/23/2010 4:49:50 PM PDT by AFreeBird
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To: ModelBreaker

Binary: ones and zeros.


70 posted on 04/23/2010 4:52:01 PM PDT by AFreeBird
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To: ModelBreaker
My reaction too. I don’t understand how teaching this is a bad thing. If it’s a substitute for being able to add, subtract etc, then its a problem. But elementary school kids are perfectly capable of understanding these ideas if they are presented right. Give me a second grader, a spinner, and three pennies and I can teach them simple probability.

At the same time that they decided to teach a dozen new concepts, they also did away with the idea of teaching until the students mastered the subject. They began teaching in a spiral design.

So, for a few days kids will be taught about addition, then go on to something else, then go on to a third, fourth, fifth subject. Then they come back around to addition, but the kids who didn't have mastery over the subject were lost. How can you remember something and build on it, if you never understood it in the first place?

So, they reduced the time kids spent becoming proficient with basic calculations, they tossed in a whole bunch of new ideas and mixed it all up so that few of the kids could get a handle on any of it.

71 posted on 04/23/2010 5:04:44 PM PDT by Dianna
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To: edge10
There are three kinds of people: Those who can do math and those who can’t.

There are 10 kinds of people; those who understand binary and those who don't.

I answered the census in binary. There are 100 people living in my house.

72 posted on 04/23/2010 5:10:14 PM PDT by gitmo ( The democRats drew first blood. It's our turn now.)
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To: wintertime
If any Anglo child is learning it is because his parents are AFTERSCHOOLING!!! Any learning a child picks up it entirely due to his parents efforts in teaching the basics and his own hard work IN THE HOME!!!

We found that our sons were learning absolutely nothing in math and English class. So I began showing them how simple math really is. Our kids' school told us it wasn't fair for us to teach our kids after school. The other kids didn't have that advantage.

That was before we homeschooled.

73 posted on 04/23/2010 5:20:28 PM PDT by gitmo ( The democRats drew first blood. It's our turn now.)
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To: dimk

Too much of the homework kids are given is busy work. Writing a word 100 times they can already spell, word searches in a matrix of letters (what the heck does that teach?), circling any word that represents a type of rock on a page of print, etc. I found about 5 minutes of learning in 5-6 hours of homework.


74 posted on 04/23/2010 5:27:11 PM PDT by gitmo ( The democRats drew first blood. It's our turn now.)
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To: GraceG

“Green studies” have displaced Math, History and English as essential curriculum items. Gotta save the planet, don’tcha know!


75 posted on 04/23/2010 5:31:48 PM PDT by Zman516 (muslims, marxists, communists ---> satan's useful idiot corps)
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To: BruceDeitrickPrice

“New math” is still screwing up millions of kids today under the name “Reform” - many states have adopted the NCTM standards which amount to the same thing. I call it Moonbat Math. Kids taught under this system never actually learn to do any math, but they do learn to manipulate blocks really well.


76 posted on 04/23/2010 6:40:37 PM PDT by Some Fat Guy in L.A. (Nope. Not gonna do it.)
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To: gitmo
We found that our sons were learning absolutely nothing in math and English class. So I began showing them how simple math really is. Our kids' school told us it wasn't fair for us to teach our kids after school. The other kids didn't have that advantage.

Ah, the Soviet method. Everyone must be miserable and apathetic to precisely the same degree, otherwise it's unfair.

77 posted on 04/23/2010 10:29:49 PM PDT by Still Thinking (Freedom is NOT a loophole!)
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To: Scrambler Bob
Define “one”

One: Usage- One way.

Definition as used: There are no shortcuts. It's done the same way it always has been.

78 posted on 04/24/2010 2:22:03 PM PDT by UCANSEE2 (The Last Boy Scout)
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To: Dianna

“At the same time that they decided to teach a dozen new concepts, they also did away with the idea of teaching until the students mastered the subject. They began teaching in a spiral design.

“So, for a few days kids will be taught about addition, then go on to something else, then go on to a third, fourth, fifth subject. Then they come back around to addition, but the kids who didn’t have mastery over the subject were lost. How can you remember something and build on it, if you never understood it in the first place?

“So, they reduced the time kids spent becoming proficient with basic calculations, they tossed in a whole bunch of new ideas and mixed it all up so that few of the kids could get a handle on any of it.”

That’s an interesting observation but not consistent with my experience in homeschooling. What you describe is definitely the curriculum approach William Bennett’s K-12 curriculum uses and that is what we use.

I can see the spiral in our teaching materials. But in fact, our son does retain enough of the earlier treatment of a particular subject to build on it next time he sees it. To be sure, there have been some times when we just stopped and did the same lesson over and over until he got it (second grade coin counting and conditional probability comes to mind). But we worked until I could tell he understood what was going on. Drill to perfection? No.

On the other hand, some of the material is so easy (because of the earlier exposure) that we blow thru 6-7 lessons in a day.

So maybe the core curriculum is better suited to a homeschool environment where you can selectively stop and concentrate for a while or spend some time straightening out the highway.

But math is far more than arithmetic. No reason kids shouldn’t be exposed to more than arithmetic. While I value competency in math facts, it is far more important to understand the ideas. I make much of my living on my math skills and I still have to stop and figure out 9x6. I do 10x6 and subtract. But I never learned math facts in the 1950’s style curriculum because it bored me. I checked out until high-school, when it got more interesting. Somewhere along the way, I missed multiplication and division facts. It doesn’t hinder me at all. I understand (usually) the problem and how to solve it. The computation is just detail.

I will admit I was worried in 2nd and 3rd grade that my boy wasn’t going to know his math facts because we did not drill them the same way I did when I was in school. Surprisingly (to me), he just finished fourth grade and knows them cold.

So maybe the error in the core curriculum idea is that it does not work in a mass education environment. But, imho, few things do, which is why we homeschool.


79 posted on 04/25/2010 10:34:44 AM PDT by ModelBreaker
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